Gnu/coreutils/Concept-index

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Index Entry

 

Section

!

!:

 

Connectives for test

!=:

 

String tests

%

%:

 

Numeric expressions

%b:

 

printf invocation

%q:

 

printf invocation

&

&:

 

Relations for expr

*:

 

Numeric expressions

+

+:

 

String expressions

+:

 

Numeric expressions

+page_range:

 

pr invocation

-

-:

 

Numeric expressions

-:

 

env invocation

- and Unix rm:

 

rm invocation

‘-’, removing files beginning with:

 

rm invocation

--:

 

Common options

--across:

 

pr invocation

--additional-suffix:

 

split invocation

--address-radix:

 

od invocation

--adjustment:

 

nice invocation

--all:

 

unexpand invocation

--all:

 

Which files are listed

--all:

 

df invocation

--all:

 

du invocation

--all:

 

stty invocation

--all:

 

who invocation

--all:

 

nproc invocation

--all:

 

uname invocation

--all-repeated:

 

uniq invocation

--almost-all:

 

Which files are listed

--apparent-size:

 

du invocation

--append:

 

tee invocation

--archive:

 

cp invocation

--attributes-only:

 

cp invocation

--author:

 

What information is listed

--auto-reference:

 

Output formatting in ptx

--backup:

 

Backup options

--backup:

 

cp invocation

--backup:

 

install invocation

--backup:

 

mv invocation

--backup:

 

ln invocation

--base16:

 

basenc invocation

--base2lsbf:

 

basenc invocation

--base2msbf:

 

basenc invocation

--base32:

 

basenc invocation

--base32hex:

 

basenc invocation

--base64:

 

basenc invocation

--base64url:

 

basenc invocation

--batch-size:

 

sort invocation

--before:

 

tac invocation

--binary:

 

md5sum invocation

--block-size:

 

Block size

--block-size:

 

df invocation

--block-size:

 

du invocation

--block-size=size:

 

Block size

--body-numbering:

 

nl invocation

--boot:

 

who invocation

--bourne-shell:

 

dircolors invocation

--break-file:

 

Input processing in ptx

--buffer-size:

 

sort invocation

--bytes:

 

fold invocation

--bytes:

 

head invocation

--bytes:

 

tail invocation

--bytes:

 

split invocation

--bytes:

 

wc invocation

--bytes:

 

cut invocation

--bytes:

 

du invocation

--c-shell:

 

dircolors invocation

--cached=mode:

 

stat invocation

--canonicalize:

 

readlink invocation

--canonicalize-existing:

 

readlink invocation

--canonicalize-existing:

 

realpath invocation

--canonicalize-missing:

 

readlink invocation

--canonicalize-missing:

 

realpath invocation

--changes:

 

chown invocation

--changes:

 

chgrp invocation

--changes:

 

chmod invocation

--characters:

 

cut invocation

--chars:

 

wc invocation

--chdir:

 

env invocation

--check:

 

sort invocation

--check:

 

sort invocation

--check-chars:

 

uniq invocation

--classify:

 

General output formatting

--color:

 

General output formatting

--columns:

 

pr invocation

--compare:

 

install invocation

--complement:

 

cut invocation

--compute:

 

runcon invocation

--context:

 

What information is listed

--context:

 

cp invocation

--context:

 

install invocation

--context:

 

mv invocation

--context:

 

mkdir invocation

--context:

 

mkfifo invocation

--context:

 

mknod invocation

--context:

 

id invocation

--count:

 

uniq invocation

--count:

 

who invocation

--count-links:

 

du invocation

--crown-margin:

 

fmt invocation

--csh:

 

dircolors invocation

--data:

 

sync invocation

--date:

 

touch invocation

--date:

 

Options for date

--dead:

 

who invocation

--debug:

 

Options for date

--debug:

 

env invocation

--debug:

 

numfmt invocation

--decode:

 

base64 invocation

--delimiter:

 

cut invocation

--delimiter:

 

numfmt invocation

--delimiters:

 

paste invocation

--dereference:

 

Which files are listed

--dereference:

 

cp invocation

--dereference:

 

chown invocation

--dereference:

 

chgrp invocation

--dereference:

 

du invocation

--dereference:

 

stat invocation

--dereference:

 

chcon invocation

--dereference-args:

 

du invocation

--dereference-command-line:

 

Which files are listed

--dereference-command-line-symlink-to-dir:

 

Which files are listed

--dictionary-order:

 

sort invocation

--digits:

 

csplit invocation

--dir:

 

rm invocation

--directory:

 

Which files are listed

--directory:

 

install invocation

--directory:

 

ln invocation

--directory:

 

mktemp invocation

--dired:

 

What information is listed

--double-space:

 

pr invocation

--dry-run:

 

mktemp invocation

--echo:

 

shuf invocation

--elide-empty-files:

 

split invocation

--elide-empty-files:

 

csplit invocation

--endian:

 

od invocation

--equal-width:

 

seq invocation

--error:

 

stdbuf invocation

--escape:

 

Formatting the file names

--exact:

 

shred invocation

--exclude-from=file:

 

du invocation

--exclude-type:

 

df invocation

--exclude=pattern:

 

du invocation

--expand-tabs:

 

pr invocation

--field:

 

numfmt invocation

--field-separator:

 

sort invocation

--fields:

 

cut invocation

--file:

 

stty invocation

--file:

 

Options for date

--file-system:

 

stat invocation

--file-system:

 

sync invocation

--file-type:

 

General output formatting

--files0-from=file:

 

wc invocation

--files0-from=file:

 

sort invocation

--files0-from=file:

 

du invocation

--filter:

 

split invocation

--first-line-number:

 

pr invocation

--flag-truncation:

 

Output formatting in ptx

--follow:

 

tail invocation

--footer-numbering:

 

nl invocation

--force:

 

cp invocation

--force:

 

mv invocation

--force:

 

rm invocation

--force:

 

shred invocation

--force:

 

ln invocation

--foreground:

 

timeout invocation

--form-feed:

 

pr invocation

--format:

 

od invocation

--format:

 

What information is listed

--format:

 

General output formatting

--format:

 

General output formatting

--format:

 

General output formatting

--format:

 

General output formatting

--format:

 

numfmt invocation

--format:

 

seq invocation

--format=format:

 

stat invocation

--format=roff:

 

Output formatting in ptx

--format=tex:

 

Output formatting in ptx

--from:

 

chown invocation

--from:

 

numfmt invocation

--from-unit:

 

numfmt invocation

--full-time:

 

What information is listed

--gap-size:

 

Output formatting in ptx

--general-numeric-sort:

 

sort invocation

--goal:

 

fmt invocation

--group:

 

uniq invocation

--group:

 

install invocation

--group:

 

id invocation

--group-directories-first:

 

Which files are listed

--grouping:

 

numfmt invocation

--groups:

 

id invocation

--groups:

 

chroot invocation

--hardware-platform:

 

uname invocation

--head-count:

 

shuf invocation

--header:

 

pr invocation

--header:

 

General options in join

--header:

 

numfmt invocation

--header-numbering:

 

nl invocation

--header=N:

 

numfmt invocation

--heading:

 

who invocation

--help:

 

Common options

--hex-suffixes:

 

split invocation

--hide-control-chars:

 

Formatting the file names

--hide=pattern:

 

Which files are listed

--human-numeric-sort:

 

sort invocation

--human-readable:

 

Block size

--human-readable:

 

What information is listed

--human-readable:

 

df invocation

--human-readable:

 

du invocation

--hyperlink:

 

General output formatting

--ignore:

 

nproc invocation

--ignore-backups:

 

Which files are listed

--ignore-case:

 

sort invocation

--ignore-case:

 

uniq invocation

--ignore-case:

 

Charset selection in ptx

--ignore-case:

 

General options in join

--ignore-environment:

 

env invocation

--ignore-fail-on-non-empty:

 

rmdir invocation

--ignore-file:

 

Input processing in ptx

--ignore-garbage:

 

base64 invocation

--ignore-interrupts:

 

tee invocation

--ignore-leading-blanks:

 

sort invocation

--ignore-missing:

 

md5sum invocation

--ignore-nonprinting:

 

sort invocation

--ignore=pattern:

 

Which files are listed

--indent:

 

pr invocation

--indicator-style:

 

General output formatting

--indicator-style:

 

General output formatting

--indicator-style:

 

General output formatting

--indicator-style:

 

General output formatting

--initial:

 

expand invocation

--inode:

 

What information is listed

--inodes:

 

df invocation

--inodes:

 

du invocation

--input:

 

stdbuf invocation

--input-range:

 

shuf invocation

--interactive:

 

cp invocation

--interactive:

 

mv invocation

--interactive:

 

rm invocation

--interactive:

 

ln invocation

--invalid:

 

numfmt invocation

--io-blocks:

 

truncate invocation

--iso-8601[=timespec]:

 

Options for date

--iterations=number:

 

shred invocation

--join-blank-lines:

 

nl invocation

--join-lines:

 

pr invocation

--keep-files:

 

csplit invocation

--kernel-name:

 

uname invocation

--kernel-release:

 

uname invocation

--kernel-version:

 

uname invocation

--key:

 

sort invocation

--kibibytes:

 

General output formatting

--kill-after:

 

timeout invocation

--length:

 

pr invocation

--length:

 

b2sum invocation

--line-bytes:

 

split invocation

--line-increment:

 

nl invocation

--lines:

 

head invocation

--lines:

 

tail invocation

--lines:

 

split invocation

--lines:

 

wc invocation

--link:

 

cp invocation

--literal:

 

Formatting the file names

--local:

 

df invocation

--logical:

 

ln invocation

--logical:

 

realpath invocation

--logical:

 

pwd invocation

--login:

 

who invocation

--lookup:

 

who invocation

--machine:

 

uname invocation

--macro-name:

 

Output formatting in ptx

--max-depth=depth:

 

du invocation

--max-line-length:

 

wc invocation

--max-unchanged-stats:

 

tail invocation

--merge:

 

pr invocation

--merge:

 

sort invocation

--mesg:

 

who invocation

--message:

 

who invocation

--mode:

 

install invocation

--mode:

 

mkdir invocation

--mode:

 

mkfifo invocation

--mode:

 

mknod invocation

--month-sort:

 

sort invocation

--multiple:

 

basename invocation

--name:

 

id invocation

--no-clobber:

 

cp invocation

--no-clobber:

 

mv invocation

--no-create:

 

touch invocation

--no-create:

 

truncate invocation

--no-dereference:

 

cp invocation

--no-dereference:

 

ln invocation

--no-dereference:

 

chown invocation

--no-dereference:

 

chgrp invocation

--no-dereference:

 

touch invocation

--no-dereference:

 

du invocation

--no-dereference:

 

chcon invocation

--no-file-warnings:

 

pr invocation

--no-group:

 

What information is listed

--no-newline:

 

readlink invocation

--no-preserve-root:

 

rm invocation

--no-preserve-root:

 

chown invocation

--no-preserve-root:

 

chgrp invocation

--no-preserve-root:

 

chmod invocation

--no-preserve-root:

 

chcon invocation

--no-renumber:

 

nl invocation

--no-symlinks:

 

realpath invocation

--no-sync:

 

df invocation

--no-target-directory:

 

Target directory

--no-target-directory:

 

cp invocation

--no-target-directory:

 

install invocation

--no-target-directory:

 

mv invocation

--no-target-directory:

 

ln invocation

--nodename:

 

uname invocation

--null:

 

du invocation

--null:

 

printenv invocation

--null:

 

env invocation

--number:

 

cat invocation

--number:

 

split invocation

--number-format:

 

nl invocation

--number-lines:

 

pr invocation

--number-nonblank:

 

cat invocation

--number-separator:

 

nl invocation

--number-width:

 

nl invocation

--numeric-sort:

 

sort invocation

--numeric-suffixes:

 

split invocation

--numeric-uid-gid:

 

What information is listed

--omit-header:

 

pr invocation

--omit-pagination:

 

pr invocation

--one-file-system:

 

cp invocation

--one-file-system:

 

rm invocation

--one-file-system:

 

du invocation

--only-delimited:

 

cut invocation

--only-file:

 

Input processing in ptx

--operating-system:

 

uname invocation

--output:

 

sort invocation

--output:

 

shuf invocation

--output:

 

df invocation

--output:

 

stdbuf invocation

--output-delimiter:

 

cut invocation

--output-duplicates:

 

od invocation

--output-error:

 

tee invocation

--output-tabs:

 

pr invocation

--owner:

 

install invocation

--padding:

 

numfmt invocation

--pages=page_range:

 

pr invocation

--page_width:

 

pr invocation

--parallel:

 

sort invocation

--parents:

 

cp invocation

--parents:

 

mkdir invocation

--parents:

 

rmdir invocation

--physical:

 

ln invocation

--physical:

 

realpath invocation

--physical:

 

pwd invocation

--pid:

 

tail invocation

--portability:

 

df invocation

--portability:

 

pathchk invocation

--prefix:

 

csplit invocation

--preserve:

 

cp invocation

--preserve-context:

 

install invocation

--preserve-root:

 

rm invocation

--preserve-root:

 

chown invocation

--preserve-root:

 

chgrp invocation

--preserve-root:

 

chmod invocation

--preserve-root:

 

chcon invocation

--preserve-status:

 

timeout invocation

--preserve-timestamps:

 

install invocation

--print-database:

 

dircolors invocation

--print-type:

 

df invocation

--printf=format:

 

stat invocation

--process:

 

who invocation

--processor:

 

uname invocation

--quiet:

 

head invocation

--quiet:

 

tail invocation

--quiet:

 

csplit invocation

--quiet:

 

md5sum invocation

--quiet:

 

readlink invocation

--quiet:

 

chown invocation

--quiet:

 

chgrp invocation

--quiet:

 

chmod invocation

--quiet:

 

mktemp invocation

--quiet:

 

realpath invocation

--quiet:

 

tty invocation

--quote-name:

 

Formatting the file names

--quoting-style:

 

Formatting the file names

--quoting-style:

 

Formatting the file names

--quoting-style:

 

Formatting the file names

--quoting-style:

 

Formatting the file names

--random-sort:

 

sort invocation

--random-source:

 

sort invocation

--random-source:

 

shuf invocation

--random-source:

 

shred invocation

--range:

 

chcon invocation

--range:

 

runcon invocation

--read-bytes:

 

od invocation

--real:

 

id invocation

--recursive:

 

Which files are listed

--recursive:

 

cp invocation

--recursive:

 

rm invocation

--recursive:

 

chown invocation

--recursive:

 

chgrp invocation

--recursive:

 

chmod invocation

--recursive:

 

chcon invocation

--reference:

 

chown invocation

--reference:

 

chgrp invocation

--reference:

 

chmod invocation

--reference:

 

touch invocation

--reference:

 

truncate invocation

--reference:

 

Options for date

--reference:

 

chcon invocation

--references:

 

Input processing in ptx

--reflink[=when]:

 

cp invocation

--regex:

 

tac invocation

--relative:

 

ln invocation

--relative-base:

 

realpath invocation

--relative-base:

 

Realpath usage examples

--relative-to:

 

realpath invocation

--relative-to:

 

Realpath usage examples

--remove:

 

shred invocation

--remove-destination:

 

cp invocation

--remove=unlink:

 

shred invocation

--remove=wipe:

 

shred invocation

--remove=wipesync:

 

shred invocation

--repeat:

 

shuf invocation

--repeated:

 

uniq invocation

--retry:

 

tail invocation

--reverse:

 

sort invocation

--reverse:

 

Sorting the output

--rfc-2822:

 

Options for date

--rfc-3339=timespec:

 

Options for date

--rfc-822:

 

Options for date

--rfc-email:

 

Options for date

--right-side-refs:

 

Output formatting in ptx

--role:

 

chcon invocation

--role:

 

runcon invocation

--round:

 

numfmt invocation

--round=down:

 

numfmt invocation

--round=from-zero:

 

numfmt invocation

--round=nearest:

 

numfmt invocation

--round=towards-zero:

 

numfmt invocation

--round=up:

 

numfmt invocation

--runlevel:

 

who invocation

--save:

 

stty invocation

--section-delimiter:

 

nl invocation

--sentence-regexp:

 

Input processing in ptx

--sep-string:

 

pr invocation

--separate-dirs:

 

du invocation

--separator:

 

tac invocation

--separator:

 

pr invocation

--separator:

 

split invocation

--separator:

 

seq invocation

--serial:

 

paste invocation

--set:

 

Options for date

--sh:

 

dircolors invocation

--show-all:

 

cat invocation

--show-control-chars:

 

pr invocation

--show-control-chars:

 

Formatting the file names

--show-ends:

 

cat invocation

--show-nonprinting:

 

cat invocation

--show-nonprinting:

 

pr invocation

--show-tabs:

 

cat invocation

--si:

 

Block size

--si:

 

What information is listed

--si:

 

df invocation

--si:

 

du invocation

--signal:

 

timeout invocation

--silent:

 

head invocation

--silent:

 

tail invocation

--silent:

 

csplit invocation

--silent:

 

readlink invocation

--silent:

 

chown invocation

--silent:

 

chgrp invocation

--silent:

 

chmod invocation

--silent:

 

tty invocation

--size:

 

What information is listed

--size:

 

truncate invocation

--size=bytes:

 

shred invocation

--skip-bytes:

 

od invocation

--skip-chars:

 

uniq invocation

--skip-chdir:

 

chroot invocation

--skip-fields:

 

uniq invocation

--sleep-interval:

 

tail invocation

--sort:

 

sort invocation

--sort:

 

sort invocation

--sort:

 

sort invocation

--sort:

 

sort invocation

--sort:

 

sort invocation

--sort:

 

Sorting the output

--sort:

 

Sorting the output

--sort:

 

Sorting the output

--sort:

 

Sorting the output

--sort:

 

Sorting the output

--spaces:

 

fold invocation

--sparse=when:

 

cp invocation

--split-only:

 

fmt invocation

--split-string:

 

env invocation

--squeeze-blank:

 

cat invocation

--stable:

 

sort invocation

--starting-line-number:

 

nl invocation

--status:

 

md5sum invocation

--strict:

 

md5sum invocation

--strings:

 

od invocation

--strip:

 

install invocation

--strip:

 

realpath invocation

--strip-program:

 

install invocation

--strip-trailing-slashes:

 

cp invocation

--strip-trailing-slashes:

 

mv invocation

--suffix:

 

Backup options

--suffix:

 

cp invocation

--suffix:

 

install invocation

--suffix:

 

mv invocation

--suffix:

 

ln invocation

--suffix:

 

basename invocation

--suffix:

 

mktemp invocation

--suffix:

 

numfmt invocation

--suffix-format:

 

csplit invocation

--suffix-length:

 

split invocation

--summarize:

 

du invocation

--suppress-matched:

 

csplit invocation

--symbolic:

 

ln invocation

--symbolic-link:

 

cp invocation

--sync:

 

df invocation

--sysv:

 

sum invocation

--tabs:

 

expand invocation

--tabs:

 

unexpand invocation

--tabsize:

 

General output formatting

--tag:

 

md5sum invocation

--tagged-paragraph:

 

fmt invocation

--target-directory:

 

Target directory

--target-directory:

 

cp invocation

--target-directory:

 

install invocation

--target-directory:

 

mv invocation

--target-directory:

 

ln invocation

--temporary-directory:

 

sort invocation

--terse:

 

stat invocation

--text:

 

md5sum invocation

--threshold:

 

du invocation

--time:

 

Sorting the output

--time:

 

Sorting the output

--time:

 

Sorting the output

--time:

 

touch invocation

--time:

 

touch invocation

--time:

 

du invocation

--time:

 

du invocation

--time:

 

du invocation

--time:

 

who invocation

--time-style:

 

Formatting file timestamps

--time-style:

 

du invocation

--tmpdir:

 

mktemp invocation

--to:

 

numfmt invocation

--to-unit:

 

numfmt invocation

--total:

 

df invocation

--total:

 

du invocation

--traditional:

 

od invocation

--type:

 

df invocation

--type:

 

chcon invocation

--type:

 

runcon invocation

--unbuffered:

 

split invocation

--uniform-spacing:

 

fmt invocation

--unique:

 

sort invocation

--unique:

 

uniq invocation

--universal:

 

Options for date

--unset:

 

env invocation

--update:

 

cp invocation

--update:

 

mv invocation

--user:

 

id invocation

--user:

 

chcon invocation

--user:

 

runcon invocation

--userspec:

 

chroot invocation

--utc:

 

Options for date

--verbose:

 

head invocation

--verbose:

 

tail invocation

--verbose:

 

split invocation

--verbose:

 

cp invocation

--verbose:

 

install invocation

--verbose:

 

mv invocation

--verbose:

 

rm invocation

--verbose:

 

shred invocation

--verbose:

 

ln invocation

--verbose:

 

mkdir invocation

--verbose:

 

readlink invocation

--verbose:

 

rmdir invocation

--verbose:

 

chown invocation

--verbose:

 

chgrp invocation

--verbose:

 

chmod invocation

--verbose:

 

chcon invocation

--verbose:

 

timeout invocation

--version:

 

Common options

--version-sort:

 

sort invocation

--warn:

 

md5sum invocation

--width:

 

od invocation

--width:

 

fmt invocation

--width:

 

pr invocation

--width:

 

fold invocation

--width:

 

Output formatting in ptx

--width:

 

General output formatting

--word-regexp:

 

Input processing in ptx

--words:

 

wc invocation

--wrap:

 

base64 invocation

--writable:

 

who invocation

--z85:

 

basenc invocation

--zero:

 

md5sum invocation

--zero:

 

shred invocation

--zero:

 

readlink invocation

--zero:

 

basename invocation

--zero:

 

dirname invocation

--zero:

 

realpath invocation

--zero:

 

id invocation

--zero-terminated:

 

head invocation

--zero-terminated:

 

tail invocation

--zero-terminated:

 

sort invocation

--zero-terminated:

 

shuf invocation

--zero-terminated:

 

uniq invocation

--zero-terminated:

 

comm invocation

--zero-terminated:

 

cut invocation

--zero-terminated:

 

paste invocation

--zero-terminated:

 

General options in join

--zero-terminated:

 

numfmt invocation

-0:

 

du invocation

-0:

 

printenv invocation

-0:

 

env invocation

-1:

 

comm invocation

-1:

 

General options in join

-1:

 

General output formatting

-2:

 

comm invocation

-2:

 

General options in join

-3:

 

comm invocation

-A:

 

cat invocation

-A:

 

od invocation

-a:

 

od invocation

-a:

 

pr invocation

-a:

 

split invocation

-A:

 

Output formatting in ptx

-a:

 

General options in join

-a:

 

unexpand invocation

-a:

 

Which files are listed

-A:

 

Which files are listed

-a:

 

cp invocation

-a:

 

touch invocation

-a:

 

df invocation

-a:

 

du invocation

-a:

 

Connectives for test

-a:

 

tee invocation

-a:

 

basename invocation

-a:

 

stty invocation

-a:

 

who invocation

-a:

 

uname invocation

-b:

 

Backup options

-b:

 

cat invocation

-b:

 

tac invocation

-b:

 

nl invocation

-b:

 

od invocation

-b:

 

fold invocation

-b:

 

split invocation

-b:

 

csplit invocation

-b:

 

md5sum invocation

-b:

 

sort invocation

-b:

 

Input processing in ptx

-b:

 

cut invocation

-B:

 

Which files are listed

-b:

 

Formatting the file names

-b:

 

dircolors invocation

-b:

 

cp invocation

-b:

 

install invocation

-b:

 

mv invocation

-b:

 

ln invocation

-B:

 

df invocation

-B:

 

du invocation

-b:

 

du invocation

-b:

 

File type tests

-b:

 

who invocation

-c:

 

od invocation

-c:

 

fmt invocation

-c:

 

pr invocation

-c:

 

head invocation

-c:

 

tail invocation

-C:

 

split invocation

-c:

 

wc invocation

-c:

 

sort invocation

-c:

 

sort invocation

-c:

 

shuf invocation

-c:

 

uniq invocation

-c:

 

cut invocation

-c:

 

Sorting the output

-C:

 

General output formatting

-c:

 

dircolors invocation

-C:

 

install invocation

-c:

 

install invocation

-c:

 

chown invocation

-c:

 

chgrp invocation

-c:

 

chmod invocation

-c:

 

touch invocation

-c:

 

du invocation

-c:

 

stat invocation

-c:

 

truncate invocation

-c:

 

File type tests

-c:

 

runcon invocation

-C:

 

env invocation

-column:

 

pr invocation

-d:

 

nl invocation

-d:

 

od invocation

-d:

 

base64 invocation

-d:

 

pr invocation

-d:

 

split invocation

-d:

 

sort invocation

-d:

 

uniq invocation

-D:

 

uniq invocation

-d:

 

cut invocation

-d:

 

paste invocation

-d:

 

Which files are listed

-D:

 

What information is listed

-d:

 

cp invocation

-D:

 

install invocation

-d:

 

install invocation

-d:

 

rm invocation

-d:

 

ln invocation

-d:

 

touch invocation

-D:

 

du invocation

-d:

 

File type tests

-d:

 

mktemp invocation

-d:

 

who invocation

-d:

 

Options for date

-d:

 

numfmt invocation

-d depth:

 

du invocation

-e:

 

cat invocation

-E:

 

cat invocation

-e:

 

pr invocation

-e:

 

split invocation

-e:

 

General options in join

-e:

 

readlink invocation

-e:

 

echo invocation

-E:

 

echo invocation

-e:

 

File characteristic tests

-e:

 

realpath invocation

-e:

 

stdbuf invocation

-ef:

 

File characteristic tests

-eq:

 

Numeric tests

-f:

 

nl invocation

-f:

 

od invocation

-F:

 

pr invocation

-f:

 

pr invocation

-f:

 

tail invocation

-F:

 

tail invocation

-f:

 

csplit invocation

-f:

 

sort invocation

-f:

 

uniq invocation

-f:

 

Charset selection in ptx

-F:

 

Output formatting in ptx

-f:

 

cut invocation

-f:

 

Sorting the output

-F:

 

General output formatting

-f:

 

cp invocation

-f:

 

mv invocation

-f:

 

rm invocation

-f:

 

shred invocation

-F:

 

ln invocation

-f:

 

ln invocation

-f:

 

readlink invocation

-f:

 

chown invocation

-f:

 

chgrp invocation

-f:

 

chmod invocation

-f:

 

touch invocation

-f:

 

stat invocation

-f:

 

File type tests

-F:

 

stty invocation

-f:

 

Options for date

-f:

 

seq invocation

-g:

 

fmt invocation

-g:

 

sort invocation

-g:

 

Output formatting in ptx

-g:

 

What information is listed

-G:

 

What information is listed

-g:

 

install invocation

-g:

 

Access permission tests

-G:

 

Access permission tests

-g:

 

stty invocation

-g:

 

id invocation

-G:

 

id invocation

-ge:

 

Numeric tests

-gt:

 

Numeric tests

-h:

 

Block size

-H:

 

Traversing symlinks

-h:

 

nl invocation

-h:

 

pr invocation

-h:

 

sort invocation

-H:

 

Which files are listed

-h:

 

What information is listed

-H:

 

cp invocation

-h:

 

chown invocation

-H:

 

chown invocation

-h:

 

chgrp invocation

-H:

 

chgrp invocation

-h:

 

touch invocation

-h:

 

df invocation

-H:

 

df invocation

-H:

 

du invocation

-h:

 

du invocation

-h:

 

File type tests

-H:

 

who invocation

-h:

 

chcon invocation

-H:

 

chcon invocation

-i:

 

nl invocation

-i:

 

od invocation

-i:

 

base64 invocation

-i:

 

pr invocation

-i:

 

sort invocation

-i:

 

shuf invocation

-i:

 

uniq invocation

-i:

 

Input processing in ptx

-i:

 

General options in join

-i:

 

expand invocation

-I:

 

Which files are listed

-i:

 

What information is listed

-i:

 

cp invocation

-i:

 

mv invocation

-i:

 

rm invocation

-I:

 

rm invocation

-i:

 

ln invocation

-i:

 

df invocation

-i:

 

tee invocation

-i:

 

uname invocation

-i:

 

env invocation

-i:

 

stdbuf invocation

-I[timespec]:

 

Options for date

-j:

 

od invocation

-J:

 

pr invocation

-k:

 

Block size

-k:

 

csplit invocation

-k:

 

sort invocation

-k:

 

General output formatting

-k:

 

df invocation

-k:

 

du invocation

-k:

 

Access permission tests

-k:

 

timeout invocation

-L:

 

Traversing symlinks

-l:

 

nl invocation

-l:

 

od invocation

-l:

 

pr invocation

-l:

 

split invocation

-l:

 

wc invocation

-L:

 

wc invocation

-l:

 

b2sum invocation

-L:

 

Which files are listed

-l:

 

What information is listed

-l:

 

cp invocation

-L:

 

cp invocation

-L:

 

ln invocation

-L:

 

chown invocation

-L:

 

chgrp invocation

-l:

 

df invocation

-L:

 

du invocation

-l:

 

du invocation

-L:

 

stat invocation

-L:

 

File type tests

-L:

 

realpath invocation

-L:

 

pwd invocation

-l:

 

who invocation

-L:

 

chcon invocation

-l:

 

chcon invocation

-l:

 

runcon invocation

-le:

 

Numeric tests

-lt:

 

Numeric tests

-m:

 

pr invocation

-m:

 

wc invocation

-m:

 

sort invocation

-M:

 

sort invocation

-M:

 

Output formatting in ptx

-m:

 

General output formatting

-m:

 

install invocation

-m:

 

mkdir invocation

-m:

 

mkfifo invocation

-m:

 

mknod invocation

-m:

 

readlink invocation

-m:

 

touch invocation

-m:

 

du invocation

-m:

 

realpath invocation

-m:

 

who invocation

-m:

 

uname invocation

-n:

 

cat invocation

-n:

 

nl invocation

-N:

 

od invocation

-n:

 

pr invocation

-N:

 

pr invocation

-n:

 

head invocation

-n:

 

tail invocation

-n:

 

split invocation

-n:

 

csplit invocation

-n:

 

sort invocation

-n:

 

shuf invocation

-n:

 

cut invocation

-n:

 

What information is listed

-N:

 

Formatting the file names

-n:

 

cp invocation

-n:

 

mv invocation

-n:

 

ln invocation

-n:

 

readlink invocation

-n:

 

echo invocation

-N:

 

File characteristic tests

-n:

 

String tests

-n:

 

id invocation

-n:

 

uname invocation

-n:

 

nice invocation

-n number:

 

shred invocation

-ne:

 

Numeric tests

-nt:

 

File characteristic tests

-o:

 

od invocation

-o:

 

pr invocation

-o:

 

sort invocation

-o:

 

shuf invocation

-o:

 

Input processing in ptx

-O:

 

Output formatting in ptx

-o:

 

What information is listed

-o:

 

install invocation

-o:

 

truncate invocation

-O:

 

Access permission tests

-o:

 

Connectives for test

-o:

 

uname invocation

-o:

 

stdbuf invocation

-ot:

 

File characteristic tests

-P:

 

Traversing symlinks

-p:

 

nl invocation

-p:

 

General output formatting

-p:

 

dircolors invocation

-P:

 

cp invocation

-p:

 

cp invocation

-p:

 

install invocation

-P:

 

ln invocation

-p:

 

mkdir invocation

-p:

 

rmdir invocation

-P:

 

chown invocation

-P:

 

chgrp invocation

-P:

 

df invocation

-P:

 

du invocation

-p:

 

File type tests

-p:

 

tee invocation

-p:

 

pathchk invocation

-P:

 

pathchk invocation

-p:

 

mktemp invocation

-P:

 

realpath invocation

-P:

 

pwd invocation

-p:

 

who invocation

-p:

 

uname invocation

-P:

 

chcon invocation

-q:

 

head invocation

-q:

 

tail invocation

-q:

 

csplit invocation

-q:

 

Formatting the file names

-Q:

 

Formatting the file names

-q:

 

readlink invocation

-q:

 

mktemp invocation

-q:

 

realpath invocation

-q:

 

who invocation

-r:

 

tac invocation

-r:

 

pr invocation

-r:

 

sum invocation

-r:

 

sort invocation

-R:

 

sort invocation

-r:

 

shuf invocation

-r:

 

Input processing in ptx

-R:

 

Output formatting in ptx

-R:

 

Which files are listed

-r:

 

Sorting the output

-R:

 

cp invocation

-r:

 

cp invocation

-r:

 

rm invocation

-R:

 

rm invocation

-r:

 

ln invocation

-R:

 

chown invocation

-R:

 

chgrp invocation

-R:

 

chmod invocation

-r:

 

touch invocation

-r:

 

truncate invocation

-r:

 

Access permission tests

-r:

 

id invocation

-r:

 

who invocation

-r:

 

Options for date

-R:

 

Options for date

-r:

 

uname invocation

-R:

 

chcon invocation

-r:

 

chcon invocation

-r:

 

runcon invocation

-S:

 

Backup options

-s:

 

cat invocation

-s:

 

tac invocation

-s:

 

nl invocation

-S:

 

od invocation

-s:

 

od invocation

-s:

 

fmt invocation

-s:

 

pr invocation

-S:

 

pr invocation

-s:

 

fold invocation

-s:

 

tail invocation

-s:

 

csplit invocation

-s:

 

sum invocation

-s:

 

sort invocation

-S:

 

sort invocation

-s:

 

uniq invocation

-S:

 

Input processing in ptx

-s:

 

cut invocation

-s:

 

paste invocation

-s:

 

What information is listed

-S:

 

Sorting the output

-s:

 

cp invocation

-S:

 

cp invocation

-s:

 

install invocation

-S:

 

install invocation

-S:

 

mv invocation

-s:

 

ln invocation

-S:

 

ln invocation

-s:

 

readlink invocation

-S:

 

du invocation

-s:

 

du invocation

-s:

 

truncate invocation

-S:

 

File type tests

-s:

 

File characteristic tests

-s:

 

basename invocation

-s:

 

realpath invocation

-s:

 

tty invocation

-s:

 

who invocation

-s:

 

Options for date

-s:

 

uname invocation

-S:

 

env invocation

-s:

 

timeout invocation

-s:

 

seq invocation

-s bytes:

 

shred invocation

-S, env and single quotes:

 

env invocation

-t:

 

cat invocation

-T:

 

cat invocation

-t:

 

od invocation

-t:

 

fmt invocation

-t:

 

pr invocation

-T:

 

pr invocation

-t:

 

split invocation

-t:

 

md5sum invocation

-t:

 

sort invocation

-T:

 

sort invocation

-T:

 

Output formatting in ptx

-t:

 

expand invocation

-t:

 

unexpand invocation

-t:

 

Sorting the output

-T:

 

General output formatting

-t:

 

cp invocation

-T:

 

cp invocation

-t:

 

install invocation

-T:

 

install invocation

-t:

 

mv invocation

-T:

 

mv invocation

-t:

 

ln invocation

-T:

 

ln invocation

-t:

 

df invocation

-T:

 

df invocation

-t:

 

du invocation

-t:

 

stat invocation

-t:

 

File type tests

-t:

 

mktemp invocation

-t:

 

who invocation

-T:

 

who invocation

-t:

 

chcon invocation

-t:

 

runcon invocation

-u:

 

cat invocation

-u:

 

fmt invocation

-u:

 

split invocation

-u:

 

sort invocation

-u:

 

uniq invocation

-u:

 

Sorting the output

-U:

 

Sorting the output

-u:

 

cp invocation

-u:

 

mv invocation

-u:

 

shred invocation

-u:

 

Access permission tests

-u:

 

mktemp invocation

-u:

 

id invocation

-u:

 

who invocation

-u:

 

Options for date

-u:

 

chcon invocation

-u:

 

runcon invocation

-u:

 

env invocation

-v:

 

cat invocation

-v:

 

nl invocation

-v:

 

od invocation

-v:

 

pr invocation

-v:

 

head invocation

-v:

 

tail invocation

-V:

 

sort invocation

-v:

 

Sorting the output

-v:

 

cp invocation

-v:

 

install invocation

-v:

 

mv invocation

-v:

 

rm invocation

-v:

 

shred invocation

-v:

 

ln invocation

-v:

 

mkdir invocation

-v:

 

readlink invocation

-v:

 

rmdir invocation

-v:

 

chown invocation

-v:

 

chgrp invocation

-v:

 

chmod invocation

-v:

 

uname invocation

-v:

 

chcon invocation

-v:

 

env invocation

-v:

 

timeout invocation

-w:

 

nl invocation

-w:

 

od invocation

-w:

 

base64 invocation

-w:

 

fmt invocation

-w:

 

pr invocation

-W:

 

pr invocation

-w:

 

fold invocation

-w:

 

wc invocation

-w:

 

md5sum invocation

-w:

 

uniq invocation

-W:

 

Input processing in ptx

-w:

 

Output formatting in ptx

-w:

 

General output formatting

-w:

 

Access permission tests

-w:

 

who invocation

-w:

 

seq invocation

-width:

 

fmt invocation

-x:

 

od invocation

-x:

 

split invocation

-X:

 

Sorting the output

-x:

 

General output formatting

-x:

 

cp invocation

-x:

 

shred invocation

-x:

 

df invocation

-x:

 

du invocation

-x:

 

Access permission tests

-X file:

 

du invocation

-z:

 

head invocation

-z:

 

tail invocation

-z:

 

csplit invocation

-z:

 

md5sum invocation

-z:

 

sort invocation

-z:

 

shuf invocation

-z:

 

uniq invocation

-z:

 

comm invocation

-z:

 

cut invocation

-z:

 

paste invocation

-z:

 

General options in join

-Z:

 

What information is listed

-Z:

 

cp invocation

-Z:

 

install invocation

-Z:

 

mv invocation

-z:

 

shred invocation

-Z:

 

mkdir invocation

-Z:

 

mkfifo invocation

-Z:

 

mknod invocation

-z:

 

readlink invocation

-z:

 

String tests

-z:

 

basename invocation

-z:

 

dirname invocation

-z:

 

realpath invocation

-Z:

 

id invocation

-z:

 

id invocation

-z:

 

numfmt invocation

/

/:

 

Numeric expressions

1

128-bit checksum:

 

md5sum invocation

16-bit checksum:

 

sum invocation

160-bit checksum:

 

sha1sum invocation

2

224-bit checksum:

 

sha2 utilities

256-bit checksum:

 

sha2 utilities

3

384-bit checksum:

 

sha2 utilities

5

512-bit checksum:

 

b2sum invocation

512-bit checksum:

 

sha2 utilities

<

<:

 

Relations for expr

<=:

 

Relations for expr

=

=:

 

Relations for expr

=:

 

String tests

==:

 

Relations for expr

==:

 

String tests

>

>:

 

Relations for expr

>=:

 

Relations for expr

\

\( regexp operator:

 

String expressions

\+ regexp operator:

 

String expressions

\? regexp operator:

 

String expressions

\c:

 

printf invocation

\ooo:

 

printf invocation

\uhhhh:

 

printf invocation

\Uhhhhhhhh:

 

printf invocation

\xhh:

 

printf invocation

\| regexp operator:

 

String expressions

_

_POSIX2_VERSION:

 

Standards conformance

_POSIX2_VERSION:

 

tail invocation

_POSIX2_VERSION:

 

sort invocation

_POSIX2_VERSION:

 

uniq invocation

_POSIX2_VERSION:

 

touch invocation

|

|:

 

Relations for expr

A

abbreviations for months:

 

Calendar date items

access permission tests:

 

Access permission tests

access permissions, changing:

 

chmod invocation

access time, changing:

 

touch invocation

access timestamp:

 

dd invocation

access timestamp, printing or sorting files by:

 

Sorting the output

access timestamp, show the most recent:

 

du invocation

across columns:

 

pr invocation

across, listing files:

 

General output formatting

adding permissions:

 

Setting Permissions

addition:

 

Numeric expressions

ago in date strings:

 

Relative items in date strings

all lines, grouping:

 

uniq invocation

all repeated lines, outputting:

 

uniq invocation

alnum:

 

Character sets

alpha:

 

Character sets

alternate ebcdic, converting to:

 

dd invocation

always color option:

 

General output formatting

always hyperlink option:

 

General output formatting

always interactive option:

 

rm invocation

am i:

 

who invocation

am in date strings:

 

Time of day items

and operator:

 

Connectives for test

and operator:

 

Relations for expr

append:

 

dd invocation

appending to the output file:

 

dd invocation

appropriate privileges:

 

install invocation

appropriate privileges:

 

Setting the time

appropriate privileges:

 

hostname invocation

appropriate privileges:

 

nice invocation

arbitrary date strings, debugging:

 

Options for date

arbitrary date strings, parsing:

 

Options for date

arbitrary text, displaying:

 

echo invocation

arch:

 

arch invocation

arithmetic tests:

 

Numeric tests

ASCII dump of files:

 

od invocation

ascii, converting to:

 

dd invocation

atime:

 

File timestamps

atime, changing:

 

touch invocation

atime, printing or sorting files by:

 

Sorting the output

atime, show the most recent:

 

du invocation

attribute caching:

 

stat invocation

attributes, file:

 

Changing file attributes

authors of parse_datetime:

 

Authors of parse_datetime

auto color option:

 

General output formatting

auto hyperlink option:

 

General output formatting

B

b for block special file:

 

mknod invocation

b2sum:

 

b2sum invocation

background jobs, stopping at terminal write:

 

Local

backslash escapes:

 

Character sets

backslash escapes:

 

echo invocation

backslash escapes:

 

echo invocation

backslash sequences for file names:

 

Formatting the file names

backup files, ignoring:

 

Which files are listed

backup options:

 

Backup options

backup suffix:

 

Backup options

backups, making:

 

Backup options

backups, making:

 

cp invocation

backups, making:

 

install invocation

backups, making:

 

mv invocation

backups, making:

 

ln invocation

backups, making only:

 

cp invocation

base32:

 

base32 invocation

base32 encoding:

 

base32 invocation

base32 encoding:

 

basenc invocation

base64:

 

base64 invocation

Base64 decoding:

 

base64 invocation

base64 encoding:

 

base64 invocation

basename:

 

basename invocation

basenc:

 

basenc invocation

baud rate, setting:

 

Special

beeping at input buffer full:

 

Input

beginning of time:

 

Time conversion specifiers

beginning of time, for POSIX:

 

Seconds since the Epoch

Bellovin, Steven M.:

 

Authors of parse_datetime

Berets, Jim:

 

Authors of parse_datetime

Berry, K.:

 

Introduction

Berry, K.:

 

Authors of parse_datetime

binary:

 

dd invocation

binary I/O:

 

dd invocation

binary input files:

 

md5sum invocation

bind mount:

 

rm invocation

bind mount:

 

stat invocation

birth time, printing or sorting files by:

 

Sorting the output

birthtime:

 

File timestamps

BLAKE2:

 

b2sum invocation

BLAKE2 hash length:

 

b2sum invocation

blank:

 

Character sets

blank lines, numbering:

 

nl invocation

blanks, ignoring leading:

 

sort invocation

block (space-padding):

 

dd invocation

block size:

 

Block size

block size:

 

dd invocation

block size of conversion:

 

dd invocation

block size of input:

 

dd invocation

block size of output:

 

dd invocation

block special check:

 

File type tests

block special files:

 

mknod invocation

block special files, creating:

 

mknod invocation

BLOCKSIZE:

 

Block size

BLOCK_SIZE:

 

Block size

body, numbering:

 

nl invocation

Bourne shell syntax for color setup:

 

dircolors invocation

breaks, cause interrupts:

 

Input

breaks, ignoring:

 

Input

brkint:

 

Input

bs:

 

dd invocation

BSD output:

 

md5sum invocation

BSD sum:

 

sum invocation

BSD tail:

 

tail invocation

BSD touch compatibility:

 

touch invocation

bsn:

 

Output

btrfs file system type:

 

df invocation

bugs, reporting:

 

Introduction

built-in shell commands, conflicts with:

 

mknod invocation

built-in shell commands, conflicts with:

 

stat invocation

built-in shell commands, conflicts with:

 

echo invocation

built-in shell commands, conflicts with:

 

printf invocation

built-in shell commands, conflicts with:

 

test invocation

built-in shell commands, conflicts with:

 

pwd invocation

built-in shell commands, conflicts with:

 

nice invocation

built-in shell commands, conflicts with:

 

kill invocation

built-in shell commands, conflicts with:

 

sleep invocation

byte count:

 

wc invocation

byte-swapping:

 

od invocation

byte-swapping:

 

dd invocation

C

c for character special file:

 

mknod invocation

C shell syntax for color setup:

 

dircolors invocation

C-s/C-q flow control:

 

Input

calendar date item:

 

Calendar date items

calling combined multi-call program:

 

Multi-call invocation

canonical file name:

 

readlink invocation

canonical file name:

 

realpath invocation

canonicalize a file name:

 

readlink invocation

canonicalize a file name:

 

realpath invocation

case folding:

 

sort invocation

case translation:

 

Local

case, ignored in dates:

 

General date syntax

cat:

 

cat invocation

cbreak:

 

Combination

cbs:

 

dd invocation

CD-ROM file system type:

 

df invocation

cdfs file system type:

 

df invocation

cdtrdsr:

 

Control

change or print terminal settings:

 

stty invocation

change SELinux context:

 

chcon invocation

changed files, verbosely describing:

 

chgrp invocation

changed owners, verbosely describing:

 

chown invocation

changing access permissions:

 

chmod invocation

changing file attributes:

 

Changing file attributes

changing file ownership:

 

chown invocation

changing file timestamps:

 

touch invocation

changing group ownership:

 

chown invocation

changing group ownership:

 

chgrp invocation

changing security context:

 

chcon invocation

changing special mode bits:

 

Changing Special Mode Bits

character classes:

 

Character sets

character count:

 

wc invocation

character size:

 

Control

character special check:

 

File type tests

character special files:

 

mknod invocation

character special files, creating:

 

mknod invocation

characters, special:

 

Characters

chcon:

 

chcon invocation

check file types:

 

test invocation

checking for sortedness:

 

sort invocation

checking for sortedness:

 

sort invocation

checksum, 128-bit:

 

md5sum invocation

checksum, 16-bit:

 

sum invocation

checksum, 160-bit:

 

sha1sum invocation

checksum, 224-bit:

 

sha2 utilities

checksum, 256-bit:

 

sha2 utilities

checksum, 384-bit:

 

sha2 utilities

checksum, 512-bit:

 

b2sum invocation

checksum, 512-bit:

 

sha2 utilities

chgrp:

 

chgrp invocation

chmod:

 

chmod invocation

chown:

 

chown invocation

chroot:

 

chroot invocation

cio:

 

dd invocation

cksum:

 

cksum invocation

clocal:

 

Control

clock skew:

 

Formatting file timestamps

clock skew:

 

File timestamps

clone:

 

cp invocation

cmspar:

 

Control

cntrl:

 

Character sets

color database, printing:

 

dircolors invocation

color setup:

 

dircolors invocation

color, distinguishing file types with:

 

General output formatting

cols:

 

Special

column to wrap data after:

 

base64 invocation

COLUMNS:

 

General output formatting

COLUMNS:

 

Special

columns:

 

Special

combination settings:

 

Combination

combined:

 

Multi-call invocation

combined date and time of day item:

 

Combined date and time of day items

comm:

 

comm invocation

command-line operands to shuffle:

 

shuf invocation

commands for controlling processes:

 

Process control

commands for delaying:

 

Delaying

commands for exit status:

 

Conditions

commands for file name manipulation:

 

File name manipulation

commands for invoking other commands:

 

Modified command invocation

commands for printing text:

 

Printing text

commands for printing the working context:

 

Working context

commands for printing user information:

 

User information

commands for redirection:

 

Redirection

commands for SELinux context:

 

SELinux context

commands for system context:

 

System context

commas, outputting between files:

 

General output formatting

comments, in dates:

 

General date syntax

common field, joining on:

 

join invocation

common lines:

 

comm invocation

common options:

 

Common options

compare values:

 

test invocation

comparing sorted files:

 

comm invocation

comparison operators:

 

Relations for expr

concatenate and write files:

 

cat invocation

concurrent I/O:

 

dd invocation

conditional executability:

 

Conditional Executability

conditions:

 

Conditions

conflicts with shell built-ins:

 

mknod invocation

conflicts with shell built-ins:

 

stat invocation

conflicts with shell built-ins:

 

echo invocation

conflicts with shell built-ins:

 

printf invocation

conflicts with shell built-ins:

 

test invocation

conflicts with shell built-ins:

 

pwd invocation

conflicts with shell built-ins:

 

nice invocation

conflicts with shell built-ins:

 

kill invocation

conflicts with shell built-ins:

 

sleep invocation

connectives, logical:

 

Connectives for test

connectives, logical:

 

Relations for expr

constant parity:

 

Control

context splitting:

 

csplit invocation

context, system:

 

System context

control characters, using ‘^c’:

 

Local

control settings:

 

Control

controlling terminal:

 

dd invocation

conv:

 

dd invocation

conversion block size:

 

dd invocation

conversion specifiers, date:

 

Date conversion specifiers

conversion specifiers, literal:

 

Literal conversion specifiers

conversion specifiers, time:

 

Time conversion specifiers

converting tabs to spaces:

 

expand invocation

converting while copying a file:

 

dd invocation

cooked:

 

Combination

Coordinated Universal Time:

 

Options for date

copy on write:

 

cp invocation

copying directories recursively:

 

cp invocation

copying directories recursively:

 

cp invocation

copying existing permissions:

 

Copying Permissions

copying files:

 

cat invocation

copying files and directories:

 

cp invocation

copying files and setting attributes:

 

install invocation

core utilities:

 

Top

count:

 

dd invocation

count_bytes:

 

dd invocation

COW:

 

cp invocation

cp:

 

cp invocation

crashes and corruption:

 

sync invocation

CRC checksum:

 

cksum invocation

cread:

 

Control

creating directories:

 

mkdir invocation

creating FIFOs (named pipes):

 

mkfifo invocation

creating links (hard only):

 

link invocation

creating links (hard or soft):

 

ln invocation

creating output file, avoiding:

 

dd invocation

creating output file, requiring:

 

dd invocation

creation timestamp, printing or sorting files by:

 

Sorting the output

crn:

 

Output

crown margin:

 

fmt invocation

crt:

 

Combination

crterase:

 

Local

crtkill:

 

Local

crtscts:

 

Control

csh syntax for color setup:

 

dircolors invocation

csn:

 

Control

csplit:

 

csplit invocation

cstopb:

 

Control

ctime:

 

File timestamps

ctime, printing or sorting by:

 

Sorting the output

ctime, show the most recent:

 

du invocation

ctlecho:

 

Local

current working directory, printing:

 

pwd invocation

cut:

 

cut invocation

cyclic redundancy check:

 

cksum invocation

D

data, erasing:

 

shred invocation

database for color setup, printing:

 

dircolors invocation

date:

 

date invocation

date and time of day format, ISO 8601:

 

Combined date and time of day items

date conversion specifiers:

 

Date conversion specifiers

date format, ISO 8601:

 

Calendar date items

date input formats:

 

Date input formats

date options:

 

Options for date

date strings, debugging:

 

Options for date

date strings, parsing:

 

Options for date

day in date strings:

 

Relative items in date strings

day in date strings:

 

Relative items in date strings

day of week item:

 

Day of week items

dd:

 

dd invocation

ddrescue:

 

dd invocation

debugging date strings:

 

Options for date

debugging, env -S:

 

env invocation

dec:

 

Combination

decctlq:

 

Combination

Decode base64 data:

 

base64 invocation

delay for a specified time:

 

sleep invocation

delaying commands:

 

Delaying

deleting characters:

 

Squeezing and deleting

dereferencing symbolic links:

 

ln invocation

descriptor follow option:

 

tail invocation

destination directory:

 

Target directory

destination directory:

 

Target directory

destination directory:

 

cp invocation

destination directory:

 

cp invocation

destination directory:

 

install invocation

destination directory:

 

install invocation

destination directory:

 

mv invocation

destination directory:

 

mv invocation

destination directory:

 

ln invocation

destination directory:

 

ln invocation

destinations, multiple output:

 

tee invocation

device file, disk:

 

df invocation

df:

 

df invocation

DF_BLOCK_SIZE:

 

Block size

diagnostic:

 

chcon invocation

dictionary order:

 

sort invocation

differing lines:

 

comm invocation

digit:

 

Character sets

dir:

 

dir invocation

dircolors:

 

dircolors invocation

direct:

 

dd invocation

direct I/O:

 

dd invocation

directories, copying:

 

cp invocation

directories, copying recursively:

 

cp invocation

directories, copying recursively:

 

cp invocation

directories, creating:

 

mkdir invocation

directories, creating with given attributes:

 

install invocation

directories, removing:

 

rm invocation

directories, removing (recursively):

 

rm invocation

directories, removing empty:

 

rmdir invocation

directory:

 

dd invocation

directory check:

 

File type tests

directory components, printing:

 

dirname invocation

directory deletion, ignoring failures:

 

rmdir invocation

directory deletion, reporting:

 

rmdir invocation

directory I/O:

 

dd invocation

directory listing:

 

ls invocation

directory listing, brief:

 

dir invocation

directory listing, recursive:

 

Which files are listed

directory listing, verbose:

 

vdir invocation

directory order, listing by:

 

Sorting the output

directory, creating temporary:

 

mktemp invocation

directory, stripping from file names:

 

basename invocation

dired Emacs mode support:

 

What information is listed

dirname:

 

dirname invocation

disabling special characters:

 

Characters

disambiguating group names and IDs:

 

Disambiguating names and IDs

discard:

 

Characters

discarding file cache:

 

dd invocation

disk allocation:

 

What information is listed

disk device file:

 

df invocation

disk usage:

 

Disk usage

disk usage by file system:

 

df invocation

disk usage for files:

 

du invocation

disks, failing:

 

dd invocation

displacement of dates:

 

Relative items in date strings

displaying text:

 

echo invocation

displaying value of a symbolic link:

 

readlink invocation

division:

 

Numeric expressions

do nothing, successfully:

 

true invocation

do nothing, unsuccessfully:

 

false invocation

DOS file system:

 

df invocation

double spacing:

 

pr invocation

down columns:

 

pr invocation

drain:

 

Special

dsusp:

 

Characters

dsync:

 

dd invocation

DTR/DSR flow control:

 

Control

du:

 

du invocation

DU_BLOCK_SIZE:

 

Block size

DVD file system type:

 

df invocation

E

ebcdic, converting to:

 

dd invocation

echo:

 

echo invocation

echo:

 

Local

echoctl:

 

Local

echoe:

 

Local

echok:

 

Local

echoke:

 

Local

echonl:

 

Local

echoprt:

 

Local

effective user and group IDs, printing:

 

id invocation

effective user ID, printing:

 

whoami invocation

Eggert, Paul:

 

Authors of parse_datetime

eight-bit characters:

 

Control

eight-bit characters:

 

Combination

eight-bit input:

 

Input

ek:

 

Combination

empty files, creating:

 

touch invocation

empty lines, numbering:

 

nl invocation

endianness:

 

od invocation

entire files, output of:

 

Output of entire files

env:

 

env invocation

env -S, and single quotes:

 

env invocation

env -S, debugging:

 

env invocation

env in scripts:

 

env invocation

environment variables, printing:

 

printenv invocation

environment, printing:

 

env invocation

environment, running a program in a modified:

 

env invocation

eof:

 

Characters

eol:

 

Characters

eol2:

 

Characters

epoch, for POSIX:

 

Seconds since the Epoch

epoch, seconds since:

 

Time conversion specifiers

equal string check:

 

String tests

equal string check:

 

String tests

equivalence classes:

 

Character sets

erase:

 

Characters

erasing data:

 

shred invocation

error messages, omitting:

 

chown invocation

error messages, omitting:

 

chgrp invocation

error messages, omitting:

 

chmod invocation

evaluation of expressions:

 

expr invocation

even parity:

 

Control

evenp:

 

Combination

exabyte, definition of:

 

Block size

examples of date:

 

Examples of date

examples of expr:

 

Examples of expr

exbibyte, definition of:

 

Block size

excl:

 

dd invocation

excluding files from du:

 

du invocation

excluding files from du:

 

du invocation

executable file check:

 

Access permission tests

executables and file type, marking:

 

General output formatting

execute/search permission:

 

Mode Structure

execute/search permission, symbolic:

 

Setting Permissions

existence-of-file check:

 

File characteristic tests

existing backup method:

 

Backup options

exit status commands:

 

Conditions

exit status of chroot:

 

chroot invocation

exit status of env:

 

env invocation

exit status of expr:

 

expr invocation

exit status of false:

 

false invocation

exit status of ls:

 

ls invocation

exit status of mktemp:

 

mktemp invocation

exit status of nice:

 

nice invocation

exit status of nohup:

 

nohup invocation

exit status of pathchk:

 

pathchk invocation

exit status of printenv:

 

printenv invocation

exit status of realpath:

 

realpath invocation

exit status of runcon:

 

runcon invocation

exit status of sort:

 

sort invocation

exit status of stdbuf:

 

stdbuf invocation

exit status of test:

 

test invocation

exit status of timeout:

 

timeout invocation

exit status of true:

 

true invocation

exit status of tty:

 

tty invocation

expand:

 

expand invocation

expr:

 

expr invocation

expression evaluation:

 

test invocation

expression evaluation:

 

expr invocation

expressions, numeric:

 

Numeric expressions

expressions, string:

 

String expressions

ext2 file system type:

 

df invocation

ext3 file system type:

 

df invocation

ext4 file system type:

 

df invocation

extended attributes, xattr:

 

install invocation

extended attributes, xattr:

 

mv invocation

extension, sorting files by:

 

Sorting the output

extproc:

 

Local

F

factor:

 

factor invocation

failure exit status:

 

false invocation

false:

 

false invocation

fat file system file:

 

df invocation

fdatasync:

 

dd invocation

ffn:

 

Output

field separator character:

 

sort invocation

fields, padding numeric:

 

Padding and other flags

FIFOs, creating:

 

mkfifo invocation

file attributes, changing:

 

Changing file attributes

file characteristic tests:

 

File characteristic tests

file contents, dumping unambiguously:

 

od invocation

file information, preserving:

 

cp invocation

file information, preserving, extended attributes, xattr:

 

cp invocation

file mode bits, numeric:

 

Numeric Modes

file name manipulation:

 

File name manipulation

file names, canonicalization:

 

realpath invocation

file names, checking validity and portability:

 

pathchk invocation

file names, creating temporary:

 

mktemp invocation

file names, stripping directory and suffix:

 

basename invocation

file offset radix:

 

od invocation

file ownership, changing:

 

chown invocation

file sizes:

 

du invocation

file space usage:

 

du invocation

file status:

 

stat invocation

file system disk usage:

 

df invocation

file system sizes:

 

df invocation

file system space, retrieving current data more slowly:

 

df invocation

file system space, retrieving old data more quickly:

 

df invocation

file system status:

 

stat invocation

file system types, limiting output to certain:

 

df invocation

file system types, limiting output to certain:

 

df invocation

file system types, printing:

 

df invocation

file systems:

 

stat invocation

file systems and hard links:

 

ln invocation

file systems, omitting copying to different:

 

cp invocation

file timestamp resolution:

 

File timestamps

file timestamps, changing:

 

touch invocation

file type and executables, marking:

 

General output formatting

file type tests:

 

File type tests

file type, marking:

 

General output formatting

file type, marking:

 

General output formatting

file types:

 

Special file types

file types, special:

 

Special file types

file utilities:

 

Top

files beginning with ‘-’, removing:

 

rm invocation

files, copying:

 

cp invocation

files, creating:

 

truncate invocation

fingerprint, 128-bit:

 

md5sum invocation

fingerprint, 160-bit:

 

sha1sum invocation

fingerprint, 224-bit:

 

sha2 utilities

fingerprint, 256-bit:

 

sha2 utilities

fingerprint, 384-bit:

 

sha2 utilities

fingerprint, 512-bit:

 

b2sum invocation

fingerprint, 512-bit:

 

sha2 utilities

first in date strings:

 

General date syntax

first part of files, outputting:

 

head invocation

fixed-length records, converting to variable-length:

 

dd invocation

floating point:

 

Floating point

flow control, hardware:

 

Control

flow control, hardware:

 

Control

flow control, software:

 

Input

flush:

 

Characters

flushing, disabling:

 

Local

flusho:

 

Local

fmt:

 

fmt invocation

fold:

 

fold invocation

folding long input lines:

 

fold invocation

footers, numbering:

 

nl invocation

force deletion:

 

shred invocation

formatting file contents:

 

Formatting file contents

formatting of numbers in seq:

 

seq invocation

formatting times:

 

pr invocation

formatting times:

 

date invocation

fortnight in date strings:

 

Relative items in date strings

fsync:

 

dd invocation

fullblock:

 

dd invocation

G

general date syntax:

 

General date syntax

general numeric sort:

 

sort invocation

gibibyte, definition of:

 

Block size

gigabyte, definition of:

 

Block size

giving away permissions:

 

Umask and Protection

GMT:

 

Options for date

grand total of disk size, usage and available space:

 

df invocation

grand total of disk space:

 

du invocation

graph:

 

Character sets

Greenwich Mean Time:

 

Options for date

group IDs, disambiguating:

 

Disambiguating names and IDs

group names, disambiguating:

 

Disambiguating names and IDs

group owner, default:

 

Mode Structure

group ownership of installed files, setting:

 

install invocation

group ownership, changing:

 

chown invocation

group ownership, changing:

 

chgrp invocation

group, permissions for:

 

Setting Permissions

groups:

 

groups invocation

growing files:

 

tail invocation

H

hangups, immunity to:

 

nohup invocation

hard link check:

 

File characteristic tests

hard link, defined:

 

ln invocation

hard links:

 

dd invocation

hard links to directories:

 

ln invocation

hard links to symbolic links:

 

ln invocation

hard links, counting in du:

 

du invocation

hard links, creating:

 

link invocation

hard links, creating:

 

ln invocation

hard links, preserving:

 

cp invocation

hardware class:

 

uname invocation

hardware flow control:

 

Control

hardware flow control:

 

Control

hardware platform:

 

uname invocation

hardware type:

 

uname invocation

hat notation for control characters:

 

Local

head:

 

head invocation

head of output:

 

shuf invocation

headers, numbering:

 

nl invocation

help, online:

 

Common options

hex dump of files:

 

od invocation

holes, copying files with:

 

cp invocation

holes, creating files with:

 

truncate invocation

horizontal, listing files:

 

General output formatting

host processor type:

 

uname invocation

hostid:

 

hostid invocation

hostname:

 

hostname invocation

hostname:

 

uname invocation

hour in date strings:

 

Relative items in date strings

human numeric sort:

 

sort invocation

human-readable output:

 

Block size

human-readable output:

 

What information is listed

human-readable output:

 

df invocation

human-readable output:

 

du invocation

hup[cl]:

 

Control

hurd, author, printing:

 

What information is listed

hyperlink, linking to files:

 

General output formatting

I

ibs:

 

dd invocation

icanon:

 

Local

icrnl:

 

Input

id:

 

id invocation

idle time:

 

who invocation

IEEE floating point:

 

Floating point

iexten:

 

Local

if:

 

dd invocation

iflag:

 

dd invocation

ignbrk:

 

Input

igncr:

 

Input

ignore file systems:

 

df invocation

Ignore garbage in base64 stream:

 

base64 invocation

ignoring case:

 

sort invocation

ignpar:

 

Input

imaxbel:

 

Input

immunity to hangups:

 

nohup invocation

implementation, hardware:

 

uname invocation

indenting lines:

 

pr invocation

index:

 

String expressions

information, about current users:

 

who invocation

initial part of files, outputting:

 

head invocation

initial tabs, converting:

 

expand invocation

inlcr:

 

Input

inode number, printing:

 

What information is listed

inode usage:

 

df invocation

inode usage, dereferencing in du:

 

du invocation

inode, and hard links:

 

ln invocation

inodes, written buffered:

 

sync invocation

inpck:

 

Input

input block size:

 

dd invocation

input encoding, UTF-8:

 

Input

input range to shuffle:

 

shuf invocation

input settings:

 

Input

input tabs:

 

pr invocation

install:

 

install invocation

intr:

 

Characters

invocation of commands, modified:

 

Modified command invocation

isig:

 

Local

ISO 8601 date and time of day format:

 

Combined date and time of day items

ISO 8601 date format:

 

Calendar date items

ISO/IEC 10646:

 

printf invocation

ISO9660 file system type:

 

df invocation

iso9660 file system type:

 

df invocation

ispeed:

 

Special

istrip:

 

Input

items in date strings:

 

General date syntax

iterations, selecting the number of:

 

shred invocation

iuclc:

 

Input

iutf8:

 

Input

ixany:

 

Input

ixoff:

 

Input

ixon:

 

Input

J

join:

 

join invocation

K

kernel name:

 

uname invocation

kernel release:

 

uname invocation

kernel version:

 

uname invocation

kibibyte, definition of:

 

Block size

kibibytes for file sizes:

 

du invocation

kibibytes for file system sizes:

 

df invocation

kill:

 

kill invocation

kill:

 

Characters

kilobyte, definition of:

 

Block size

Knuth, Donald E.:

 

fmt invocation

L

language, in dates:

 

General date syntax

language, in dates:

 

General date syntax

last day:

 

Day of week items

last day:

 

Options for date

last in date strings:

 

General date syntax

last modified dates, displaying in du:

 

du invocation

last part of files, outputting:

 

tail invocation

lcase:

 

Combination

LCASE:

 

Combination

lcase, converting to:

 

dd invocation

lchown:

 

chown invocation

lchown:

 

chown invocation

lchown:

 

chgrp invocation

lchown:

 

chgrp invocation

LC_ALL:

 

sort invocation

LC_ALL:

 

ls invocation

LC_COLLATE:

 

sort invocation

LC_COLLATE:

 

uniq invocation

LC_COLLATE:

 

comm invocation

LC_COLLATE:

 

Sorting files for join

LC_COLLATE:

 

Relations for expr

LC_CTYPE:

 

sort invocation

LC_CTYPE:

 

sort invocation

LC_CTYPE:

 

sort invocation

LC_CTYPE:

 

sort invocation

LC_CTYPE:

 

printf invocation

LC_MESSAGES:

 

pr invocation

LC_NUMERIC:

 

Block size

LC_NUMERIC:

 

Floating point

LC_NUMERIC:

 

sort invocation

LC_NUMERIC:

 

sort invocation

LC_NUMERIC:

 

sort invocation

LC_NUMERIC:

 

printf invocation

LC_TIME:

 

pr invocation

LC_TIME:

 

sort invocation

LC_TIME:

 

Formatting file timestamps

LC_TIME:

 

Formatting file timestamps

LC_TIME:

 

Formatting file timestamps

LC_TIME:

 

du invocation

LC_TIME:

 

date invocation

leading directories, creating missing:

 

install invocation

leading directory components, stripping:

 

basename invocation

leap seconds:

 

touch invocation

leap seconds:

 

Time conversion specifiers

leap seconds:

 

Time conversion specifiers

leap seconds:

 

Options for date

leap seconds:

 

Examples of date

leap seconds:

 

General date syntax

leap seconds:

 

Time of day items

leap seconds:

 

Seconds since the Epoch

left margin:

 

pr invocation

length:

 

String expressions

limiting output of du:

 

du invocation

line:

 

Special

line buffered:

 

stdbuf invocation

line count:

 

wc invocation

line numbering:

 

nl invocation

line separator character:

 

split invocation

line settings of terminal:

 

stty invocation

line-breaking:

 

fmt invocation

line-by-line comparison:

 

comm invocation

LINES:

 

Special

link:

 

link invocation

links, creating:

 

link invocation

links, creating:

 

ln invocation

Linux file system types:

 

df invocation

literal conversion specifiers:

 

Literal conversion specifiers

litout:

 

Combination

ln:

 

ln invocation

ln format for nl:

 

nl invocation

lnext:

 

Characters

local file system types:

 

df invocation

local settings:

 

Local

logging out and continuing to run:

 

nohup invocation

logical and operator:

 

Connectives for test

logical and operator:

 

Relations for expr

logical connectives:

 

Connectives for test

logical connectives:

 

Relations for expr

logical or operator:

 

Connectives for test

logical or operator:

 

Relations for expr

logical pages, numbering on:

 

nl invocation

login name, printing:

 

logname invocation

login sessions, printing users with:

 

users invocation

login time:

 

who invocation

logname:

 

logname invocation

long ls format:

 

What information is listed

lower:

 

Character sets

lowercase, translating to output:

 

Output

ls:

 

ls invocation

LS_BLOCK_SIZE:

 

Block size

LS_COLORS:

 

General output formatting

LS_COLORS:

 

dircolors invocation

lutimes:

 

touch invocation

M

machine type:

 

uname invocation

machine-readable stty output:

 

stty invocation

MacKenzie, D.:

 

Introduction

MacKenzie, David:

 

Authors of parse_datetime

Makefiles, installing programs in:

 

install invocation

manipulating files:

 

Basic operations

manipulation of file names:

 

File name manipulation

mark parity:

 

Control

match:

 

String expressions

matching patterns:

 

String expressions

MD5:

 

md5sum invocation

md5sum:

 

md5sum invocation

mebibyte, definition of:

 

Block size

mebibytes for file sizes:

 

du invocation

megabyte, definition of:

 

Block size

merging files:

 

paste invocation

merging files in parallel:

 

pr invocation

merging sorted files:

 

sort invocation

message status:

 

who invocation

message-digest, 128-bit:

 

md5sum invocation

message-digest, 160-bit:

 

sha1sum invocation

message-digest, 224-bit:

 

sha2 utilities

message-digest, 256-bit:

 

sha2 utilities

message-digest, 384-bit:

 

sha2 utilities

message-digest, 512-bit:

 

b2sum invocation

message-digest, 512-bit:

 

sha2 utilities

Meyering, J.:

 

Introduction

Meyering, Jim:

 

Authors of parse_datetime

midnight in date strings:

 

Time of day items

min:

 

Special

minute in date strings:

 

Relative items in date strings

minutes, time zone correction by:

 

Time of day items

mkdir:

 

mkdir invocation

mkfifo:

 

mkfifo invocation

mknod:

 

mknod invocation

mktemp:

 

mktemp invocation

modem control:

 

Control

modes and umask:

 

Umask and Protection

modes of created directories, setting:

 

mkdir invocation

modes of created FIFOs, setting:

 

mkfifo invocation

modification timestamp, sorting files by:

 

Sorting the output

modified command invocation:

 

Modified command invocation

modified environment, running a program in a:

 

env invocation

modify time, changing:

 

touch invocation

month in date strings:

 

Relative items in date strings

month names in date strings:

 

Calendar date items

months, sorting by:

 

sort invocation

months, written-out:

 

General date syntax

MS-DOS file system:

 

df invocation

MS-Windows file system:

 

df invocation

mtime:

 

File timestamps

mtime, changing:

 

touch invocation

mtime-greater-atime file check:

 

File characteristic tests

multicall:

 

Multi-call invocation

multicolumn output, generating:

 

pr invocation

multiple changes to permissions:

 

Multiple Changes

multiplication:

 

Numeric expressions

multipliers after numbers:

 

dd invocation

multithreaded sort:

 

sort invocation

mv:

 

mv invocation

N

name follow option:

 

tail invocation

name of kernel:

 

uname invocation

named pipe check:

 

File type tests

named pipes, creating:

 

mkfifo invocation

network node name:

 

uname invocation

never interactive option:

 

rm invocation

newer files, copying only:

 

cp invocation

newer files, moving only:

 

mv invocation

newer-than file check:

 

File characteristic tests

newline echoing after kill:

 

Local

newline, echoing:

 

Local

newline, translating to crlf:

 

Output

newline, translating to return:

 

Input

next day:

 

Day of week items

next day:

 

Options for date

next in date strings:

 

General date syntax

NFS file system type:

 

df invocation

NFS mounts from BSD to HP-UX:

 

What information is listed

NFS mounts from BSD to HP-UX:

 

du invocation

nice:

 

nice invocation

niceness:

 

nice invocation

nl:

 

nl invocation

nl:

 

Combination

nln:

 

Output

no dereference:

 

chcon invocation

no-op:

 

true invocation

noatime:

 

dd invocation

nocache:

 

dd invocation

nocreat:

 

dd invocation

noctty:

 

dd invocation

node name:

 

uname invocation

noerror:

 

dd invocation

noflsh:

 

Local

nofollow:

 

dd invocation

nohup:

 

nohup invocation

nohup.out:

 

nohup invocation

nohup.out:

 

nohup invocation

nolinks:

 

dd invocation

non-directories, copying as special files:

 

cp invocation

non-directories, copying as special files:

 

cp invocation

non-directory suffix, stripping:

 

dirname invocation

nonblock:

 

dd invocation

nonblocking I/O:

 

dd invocation

nonblocking stty setting:

 

Special

none backup method:

 

Backup options

none color option:

 

General output formatting

none dd status=:

 

dd invocation

none hyperlink option:

 

General output formatting

none, sorting option for ls:

 

Sorting the output

nonempty file check:

 

File characteristic tests

nonprinting characters, ignoring:

 

sort invocation

nonzero-length string check:

 

String tests

noon in date strings:

 

Time of day items

not-equal string check:

 

String tests

notrunc:

 

dd invocation

now in date strings:

 

Relative items in date strings

noxfer dd status=:

 

dd invocation

NO_NEW_PRIVS:

 

runcon invocation

nproc:

 

nproc invocation

NTFS file system:

 

df invocation

ntfs file system file:

 

df invocation

number of inputs to merge, nmerge:

 

sort invocation

numbered backup method:

 

Backup options

numbering lines:

 

nl invocation

numbers, written-out:

 

General date syntax

numeric expressions:

 

Numeric expressions

numeric field padding:

 

Padding and other flags

numeric modes:

 

Numeric Modes

numeric operations:

 

Numeric operations

numeric sequences:

 

seq invocation

numeric sort:

 

sort invocation

numeric tests:

 

Numeric tests

numeric uid and gid:

 

What information is listed

numeric user and group IDs:

 

What information is listed

numfmt:

 

numfmt invocation

O

obs:

 

dd invocation

ocrnl:

 

Output

octal dump of files:

 

od invocation

octal numbers for file modes:

 

Numeric Modes

od:

 

od invocation

odd parity:

 

Control

oddp:

 

Combination

of:

 

dd invocation

ofdel:

 

Output

ofill:

 

Output

oflag:

 

dd invocation

olcuc:

 

Output

older-than file check:

 

File characteristic tests

once interactive option:

 

rm invocation

one file system, restricting du to:

 

du invocation

one file system, restricting rm to:

 

rm invocation

one-line output format:

 

df invocation

onlcr:

 

Output

onlret:

 

Output

onocr:

 

Output

operating on characters:

 

Operating on characters

operating on sorted files:

 

Operating on sorted files

operating system name:

 

uname invocation

opost:

 

Output

option delimiter:

 

Common options

options for date:

 

Options for date

or operator:

 

Connectives for test

or operator:

 

Relations for expr

ordinal numbers:

 

General date syntax

ospeed:

 

Special

other permissions:

 

Setting Permissions

output block size:

 

dd invocation

output file name prefix:

 

split invocation

output file name prefix:

 

csplit invocation

output file name suffix:

 

csplit invocation

output format:

 

stat invocation

output format:

 

stat invocation

output format, portable:

 

df invocation

output NUL-byte-terminated lines:

 

md5sum invocation

output NUL-byte-terminated lines:

 

readlink invocation

output NUL-byte-terminated lines:

 

du invocation

output NUL-byte-terminated lines:

 

basename invocation

output NUL-byte-terminated lines:

 

dirname invocation

output NUL-byte-terminated lines:

 

realpath invocation

output NUL-byte-terminated lines:

 

printenv invocation

output NUL-byte-terminated lines:

 

env invocation

output of entire files:

 

Output of entire files

output of parts of files:

 

Output of parts of files

output settings:

 

Output

output tabs:

 

pr invocation

overwriting of input, allowed:

 

sort invocation

overwriting of input, allowed:

 

shuf invocation

owned by effective group ID check:

 

Access permission tests

owned by effective user ID check:

 

Access permission tests

owner of file, permissions for:

 

Setting Permissions

owner, default:

 

Mode Structure

ownership of installed files, setting:

 

install invocation

P

p for FIFO file:

 

mknod invocation

pad character:

 

Output

pad instead of timing for delaying:

 

Output

padding of numeric fields:

 

Padding and other flags

paragraphs, reformatting:

 

fmt invocation

parenb:

 

Control

parent directories and cp:

 

cp invocation

parent directories, creating:

 

mkdir invocation

parent directories, creating missing:

 

install invocation

parent directories, removing:

 

rmdir invocation

parentheses for grouping:

 

expr invocation

parity:

 

Combination

parity errors, marking:

 

Input

parity, ignoring:

 

Input

parmrk:

 

Input

parodd:

 

Control

parse_datetime:

 

Date input formats

parsing date strings:

 

Options for date

parts of files, output of:

 

Output of parts of files

pass8:

 

Combination

paste:

 

paste invocation

Paterson, R.:

 

Introduction

PATH:

 

env invocation

pathchk:

 

pathchk invocation

pattern matching:

 

String expressions

pebibyte, definition of:

 

Block size

permission tests:

 

Access permission tests

permissions of installed files, setting:

 

install invocation

permissions, changing access:

 

chmod invocation

permissions, copying existing:

 

Copying Permissions

permissions, for changing file timestamps:

 

touch invocation

permissions, output by ls:

 

What information is listed

petabyte, definition of:

 

Block size

phone directory order:

 

sort invocation

pieces, splitting a file into:

 

split invocation

Pinard, F.:

 

Introduction

Pinard, F.:

 

Authors of parse_datetime

pipe fitting:

 

tee invocation

Plass, Michael F.:

 

fmt invocation

platform, hardware:

 

uname invocation

pm in date strings:

 

Time of day items

portable file names, checking for:

 

pathchk invocation

portable output format:

 

df invocation

POSIX:

 

Introduction

POSIX output format:

 

df invocation

POSIXLY_CORRECT:

 

Common options

POSIXLY_CORRECT:

 

Standards conformance

POSIXLY_CORRECT:

 

pr invocation

POSIXLY_CORRECT:

 

sort invocation

POSIXLY_CORRECT:

 

sort invocation

POSIXLY_CORRECT:

 

dd invocation

POSIXLY_CORRECT:

 

echo invocation

POSIXLY_CORRECT:

 

printf invocation

POSIXLY_CORRECT:

 

id invocation

POSIXLY_CORRECT, and block size:

 

Block size

pr:

 

pr invocation

prime factors:

 

factor invocation

print:

 

Character sets

print machine hardware name:

 

arch invocation

print name of current directory:

 

pwd invocation

print system information:

 

uname invocation

print terminal file name:

 

tty invocation

Print the number of processors:

 

nproc invocation

printenv:

 

printenv invocation

printf:

 

printf invocation

printing all or some environment variables:

 

printenv invocation

printing color database:

 

dircolors invocation

printing current user information:

 

who invocation

printing current usernames:

 

users invocation

printing groups a user is in:

 

groups invocation

printing real and effective user and group IDs:

 

id invocation

printing text:

 

echo invocation

printing text, commands for:

 

Printing text

printing the current time:

 

date invocation

printing the effective user ID:

 

whoami invocation

printing the host identifier:

 

hostid invocation

printing the hostname:

 

hostname invocation

printing the system uptime and load:

 

uptime invocation

printing user’s login name:

 

logname invocation

printing, preparing files for:

 

pr invocation

process zero-terminated items:

 

head invocation

process zero-terminated items:

 

tail invocation

process zero-terminated items:

 

sort invocation

process zero-terminated items:

 

shuf invocation

process zero-terminated items:

 

uniq invocation

process zero-terminated items:

 

comm invocation

process zero-terminated items:

 

cut invocation

process zero-terminated items:

 

paste invocation

process zero-terminated items:

 

General options in join

process zero-terminated items:

 

numfmt invocation

processes, commands for controlling:

 

Process control

progress dd status=:

 

dd invocation

prompting, and ln:

 

ln invocation

prompting, and mv:

 

mv invocation

prompting, and rm:

 

rm invocation

prompts, forcing:

 

mv invocation

prompts, omitting:

 

mv invocation

prompts, omitting:

 

mv invocation

prterase:

 

Local

ptx:

 

ptx invocation

punct:

 

Character sets

pure numbers in date strings:

 

Pure numbers in date strings

pwd:

 

pwd invocation

Q

quit:

 

Characters

quoting style:

 

Formatting the file names

R

radix for file offsets:

 

od invocation

random seed:

 

Random sources

random sort:

 

sort invocation

random source for shredding:

 

shred invocation

random source for shuffling:

 

shuf invocation

random source for sorting:

 

sort invocation

random sources:

 

Random sources

ranges:

 

Character sets

raw:

 

Combination

read errors, ignoring:

 

dd invocation

read from stdin and write to stdout and files:

 

tee invocation

read permission:

 

Mode Structure

read permission, symbolic:

 

Setting Permissions

read system call, and holes:

 

cp invocation

readable file check:

 

Access permission tests

readlink:

 

readlink invocation

real user and group IDs, printing:

 

id invocation

realpath:

 

realpath invocation

realpath:

 

realpath invocation

realpath:

 

realpath invocation

realpath:

 

readlink invocation

record separator character:

 

split invocation

recursive directory listing:

 

Which files are listed

recursively changing access permissions:

 

chmod invocation

recursively changing file ownership:

 

chown invocation

recursively changing group ownership:

 

chgrp invocation

recursively copying directories:

 

cp invocation

recursively copying directories:

 

cp invocation

redirection:

 

Redirection

reference file:

 

chcon invocation

reformatting paragraph text:

 

fmt invocation

regular expression matching:

 

String expressions

regular file check:

 

File type tests

relations, numeric or string:

 

Relations for expr

relative items in date strings:

 

Relative items in date strings

release of kernel:

 

uname invocation

relpath:

 

realpath invocation

remainder:

 

Numeric expressions

remote hostname:

 

who invocation

removing characters:

 

Squeezing and deleting

removing empty directories:

 

rmdir invocation

removing files after shredding:

 

shred invocation

removing files or directories:

 

rm invocation

removing files or directories (via the unlink syscall):

 

unlink invocation

removing permissions:

 

Setting Permissions

repeat output values:

 

shuf invocation

repeated characters:

 

Character sets

repeated lines, outputting:

 

uniq invocation

repeated output of a string:

 

yes invocation

restricted deletion flag:

 

Mode Structure

restricted security context:

 

runcon invocation

return, ignoring:

 

Input

return, translating to newline:

 

Input

return, translating to newline:

 

Output

reverse sorting:

 

sort invocation

reverse sorting:

 

Sorting the output

reversing files:

 

tac invocation

rm:

 

rm invocation

rmdir:

 

rmdir invocation

rn format for nl:

 

nl invocation

root as default owner:

 

install invocation

root directory, allow recursive destruction:

 

rm invocation

root directory, allow recursive modification:

 

chown invocation

root directory, allow recursive modification:

 

chgrp invocation

root directory, allow recursive modification:

 

chmod invocation

root directory, disallow recursive destruction:

 

rm invocation

root directory, disallow recursive modification:

 

chown invocation

root directory, disallow recursive modification:

 

chgrp invocation

root directory, disallow recursive modification:

 

chmod invocation

root directory, running a program in a specified:

 

chroot invocation

rows:

 

Special

rprnt:

 

Characters

RTS/CTS flow control:

 

Control

run commands with bounded time:

 

timeout invocation

run with security context:

 

runcon invocation

runcon:

 

runcon invocation

running a program in a modified environment:

 

env invocation

running a program in a specified root directory:

 

chroot invocation

rz format for nl:

 

nl invocation

S

Salz, Rich:

 

Authors of parse_datetime

same file check:

 

File characteristic tests

sane:

 

Combination

scheduling, affecting:

 

nice invocation

screen columns:

 

fold invocation

scripts arguments:

 

env invocation

seconds since the epoch:

 

Time conversion specifiers

section delimiters of pages:

 

nl invocation

security context:

 

What information is listed

security context:

 

cp invocation

security context:

 

install invocation

security context:

 

install invocation

security context:

 

mv invocation

security context:

 

mkdir invocation

security context:

 

mkfifo invocation

security context:

 

mknod invocation

security context:

 

id invocation

seek:

 

dd invocation

seek_bytes:

 

dd invocation

self-backups:

 

cp invocation

SELinux:

 

What information is listed

SELinux:

 

install invocation

SELinux:

 

id invocation

SELinux context:

 

SELinux context

SELinux, context:

 

SELinux context

SELinux, restoring security context:

 

mv invocation

SELinux, setting/restoring security context:

 

cp invocation

SELinux, setting/restoring security context:

 

install invocation

SELinux, setting/restoring security context:

 

mkdir invocation

SELinux, setting/restoring security context:

 

mkfifo invocation

SELinux, setting/restoring security context:

 

mknod invocation

send a signal to processes:

 

kill invocation

sentences and line-breaking:

 

fmt invocation

separator for numbers in seq:

 

seq invocation

seq:

 

seq invocation

sequence of numbers:

 

seq invocation

set-group-ID:

 

Mode Structure

set-group-ID check:

 

Access permission tests

set-user-ID:

 

Mode Structure

set-user-ID check:

 

Access permission tests

setgid:

 

Mode Structure

setting permissions:

 

Setting Permissions

setting the hostname:

 

hostname invocation

setting the time:

 

Setting the time

setuid:

 

Mode Structure

setup for color:

 

dircolors invocation

sh syntax for color setup:

 

dircolors invocation

SHA-1:

 

sha1sum invocation

SHA-2:

 

sha2 utilities

sha1sum:

 

sha1sum invocation

sha224sum:

 

sha2 utilities

sha256sum:

 

sha2 utilities

sha384sum:

 

sha2 utilities

sha512sum:

 

sha2 utilities

shebang arguments:

 

env invocation

SHELL environment variable, and color:

 

General output formatting

SHELL environment variable, and color:

 

dircolors invocation

shell utilities:

 

Top

shred:

 

shred invocation

shuf:

 

shuf invocation

shuffling files:

 

shuf invocation

SI output:

 

Block size

SI output:

 

What information is listed

SI output:

 

df invocation

SI output:

 

du invocation

signals, specifying:

 

Signal specifications

simple backup method:

 

Backup options

SIMPLE_BACKUP_SUFFIX:

 

Backup options

single quotes, and env -S:

 

env invocation

single-column output of files:

 

General output formatting

size:

 

Special

size for main memory sorting:

 

sort invocation

size of file to shred:

 

shred invocation

size of files, reporting:

 

What information is listed

size of files, sorting files by:

 

Sorting the output

skip:

 

dd invocation

skip_bytes:

 

dd invocation

sleep:

 

sleep invocation

socket check:

 

File type tests

software flow control:

 

Input

sort:

 

sort invocation

sort field:

 

sort invocation

sort stability:

 

sort invocation

sort stability:

 

sort invocation

sort’s last-resort comparison:

 

sort invocation

sort’s last-resort comparison:

 

sort invocation

sorted files, operations on:

 

Operating on sorted files

sorting files:

 

sort invocation

sorting ls output:

 

Sorting the output

space:

 

Character sets

space parity:

 

Control

sparse:

 

dd invocation

sparse files, copying:

 

cp invocation

sparse files, creating:

 

truncate invocation

special characters:

 

Characters

special file types:

 

Special file types

special file types:

 

Special file types

special files:

 

mknod invocation

special settings:

 

Special

specifying sets of characters:

 

Character sets

speed:

 

Special

split:

 

split invocation

splitting a file into pieces:

 

split invocation

splitting a file into pieces by context:

 

csplit invocation

squeezing blank lines:

 

cat invocation

squeezing empty lines:

 

cat invocation

squeezing repeat characters:

 

Squeezing and deleting

Stallman, R.:

 

Introduction

standard input:

 

Common options

standard output:

 

Common options

standard streams, buffering:

 

stdbuf invocation

start:

 

Characters

stat:

 

stat invocation

status:

 

dd invocation

status:

 

Characters

status time, printing or sorting by:

 

Sorting the output

status time, show the most recent:

 

du invocation

stdbuf:

 

stdbuf invocation

stick parity:

 

Control

sticky:

 

Mode Structure

sticky bit check:

 

Access permission tests

stop:

 

Characters

stop bits:

 

Control

strftime and date:

 

date invocation

string constants, outputting:

 

od invocation

string expressions:

 

String expressions

string tests:

 

String tests

strip directory and suffix from file names:

 

basename invocation

stripping non-directory suffix:

 

dirname invocation

stripping symbol table information:

 

install invocation

stripping trailing slashes:

 

cp invocation

stripping trailing slashes:

 

mv invocation

stty:

 

stty invocation

substr:

 

String expressions

subtracting permissions:

 

Setting Permissions

subtraction:

 

Numeric expressions

successful exit:

 

true invocation

suffix, stripping from file names:

 

basename invocation

sum:

 

sum invocation

summarizing files:

 

Summarizing files

superblock, writing:

 

sync invocation

supplementary groups, printing:

 

groups invocation

susp:

 

Characters

swab (byte-swapping):

 

dd invocation

swap space, saving text image in:

 

Mode Structure

swtch:

 

Characters

symbol table information, stripping:

 

install invocation

symbol table information, stripping, program:

 

install invocation

symbolic (soft) links, creating:

 

ln invocation

symbolic link check:

 

File type tests

symbolic link to directory, controlling traversal of:

 

Traversing symlinks

symbolic link to directory, never traverse:

 

Traversing symlinks

symbolic link to directory, never traverse:

 

chown invocation

symbolic link to directory, never traverse:

 

chgrp invocation

symbolic link to directory, never traverse:

 

chcon invocation

symbolic link to directory, traverse each that is encountered:

 

Traversing symlinks

symbolic link to directory, traverse each that is encountered:

 

chown invocation

symbolic link to directory, traverse each that is encountered:

 

chgrp invocation

symbolic link to directory, traverse each that is encountered:

 

chcon invocation

symbolic link to directory, traverse if on the command line:

 

Traversing symlinks

symbolic link to directory, traverse if on the command line:

 

chown invocation

symbolic link to directory, traverse if on the command line:

 

chgrp invocation

symbolic link to directory, traverse if on the command line:

 

chcon invocation

symbolic link, defined:

 

ln invocation

symbolic links and ln:

 

ln invocation

symbolic links and pwd:

 

pwd invocation

symbolic links, changing group:

 

chgrp invocation

symbolic links, changing owner:

 

chown invocation

symbolic links, changing owner:

 

chown invocation

symbolic links, changing owner:

 

chown invocation

symbolic links, changing owner:

 

chgrp invocation

symbolic links, changing time:

 

touch invocation

symbolic links, copying:

 

cp invocation

symbolic links, copying:

 

cp invocation

symbolic links, copying with:

 

cp invocation

symbolic links, dereferencing:

 

Which files are listed

symbolic links, dereferencing:

 

Which files are listed

symbolic links, dereferencing:

 

Which files are listed

symbolic links, dereferencing in du:

 

du invocation

symbolic links, dereferencing in du:

 

du invocation

symbolic links, dereferencing in stat:

 

stat invocation

symbolic links, following:

 

dd invocation

symbolic links, permissions of:

 

chmod invocation

symbolic modes:

 

Symbolic Modes

symlinks, resolution:

 

realpath invocation

sync:

 

sync invocation

sync:

 

dd invocation

sync (padding with ASCII NULs):

 

dd invocation

Synchronize cached writes to persistent storage:

 

sync invocation

synchronize disk and memory:

 

sync invocation

synchronized data and metadata I/O:

 

dd invocation

synchronized data and metadata writes, before finishing:

 

dd invocation

synchronized data reads:

 

dd invocation

synchronized data writes, before finishing:

 

dd invocation

system context:

 

System context

system information, printing:

 

arch invocation

system information, printing:

 

nproc invocation

system information, printing:

 

uname invocation

system name, printing:

 

hostname invocation

System V sum:

 

sum invocation

T

tab stops, setting:

 

expand invocation

tabn:

 

Output

tabs:

 

Combination

tabs to spaces, converting:

 

expand invocation

tac:

 

tac invocation

tagged paragraphs:

 

fmt invocation

tail:

 

tail invocation

tandem:

 

Input

target directory:

 

Target directory

target directory:

 

Target directory

target directory:

 

Target directory

target directory:

 

cp invocation

target directory:

 

cp invocation

target directory:

 

install invocation

target directory:

 

install invocation

target directory:

 

mv invocation

target directory:

 

mv invocation

target directory:

 

ln invocation

target directory:

 

ln invocation

tebibyte, definition of:

 

Block size

tee:

 

tee invocation

telephone directory order:

 

sort invocation

temporary directory:

 

sort invocation

temporary files and directories:

 

mktemp invocation

terabyte, definition of:

 

Block size

terminal check:

 

File type tests

terminal file name, printing:

 

tty invocation

terminal lines, currently used:

 

who invocation

terminal settings:

 

stty invocation

terminal, using color iff:

 

General output formatting

terminal, using hyperlink iff:

 

General output formatting

terse output:

 

stat invocation

test:

 

test invocation

text:

 

dd invocation

text I/O:

 

dd invocation

text image, saving in swap space:

 

Mode Structure

text input files:

 

md5sum invocation

text utilities:

 

Top

text, displaying:

 

echo invocation

text, reformatting:

 

fmt invocation

this in date strings:

 

Relative items in date strings

time:

 

touch invocation

time:

 

Special

time conversion specifiers:

 

Time conversion specifiers

time formats:

 

pr invocation

time formats:

 

date invocation

time limit:

 

timeout invocation

time of day item:

 

Time of day items

time setting:

 

Setting the time

time style:

 

Formatting file timestamps

time style:

 

du invocation

time units:

 

timeout invocation

time units:

 

sleep invocation

time zone correction:

 

Time of day items

time zone item:

 

General date syntax

time zone item:

 

Time zone items

time, printing or setting:

 

date invocation

timeout:

 

timeout invocation

timestamps of installed files, preserving:

 

install invocation

timestamps, changing file:

 

touch invocation

TIME_STYLE:

 

Formatting file timestamps

TIME_STYLE:

 

du invocation

TMPDIR:

 

sort invocation

TMPDIR:

 

sort invocation

today in date strings:

 

Relative items in date strings

tomorrow:

 

Options for date

tomorrow in date strings:

 

Relative items in date strings

topological sort:

 

tsort invocation

tostop:

 

Local

total counts:

 

wc invocation

touch:

 

touch invocation

tr:

 

tr invocation

trailing slashes:

 

Trailing slashes

translating characters:

 

Translating

true:

 

true invocation

truncate:

 

truncate invocation

truncating output file, avoiding:

 

dd invocation

truncating, file sizes:

 

truncate invocation

tsort:

 

tsort invocation

tty:

 

tty invocation

two-way parity:

 

Control

type size:

 

od invocation

TZ:

 

pr invocation

TZ:

 

Formatting file timestamps

TZ:

 

touch invocation

TZ:

 

stat invocation

TZ:

 

who invocation

TZ:

 

date invocation

TZ:

 

Options for date

TZ:

 

Specifying time zone rules

U

u, and disabling special characters:

 

Characters

ucase, converting to:

 

dd invocation

umask and modes:

 

Umask and Protection

uname:

 

uname invocation

unblock:

 

dd invocation

unexpand:

 

unexpand invocation

Unicode:

 

printf invocation

uniq:

 

uniq invocation

unique lines, outputting:

 

uniq invocation

uniquify files:

 

uniq invocation

uniquifying output:

 

sort invocation

Universal Time:

 

Options for date

unlink:

 

unlink invocation

unprintable characters, ignoring:

 

sort invocation

unsorted directory listing:

 

Sorting the output

upper:

 

Character sets

uppercase, translating to lowercase:

 

Input

uptime:

 

uptime invocation

use time, changing:

 

touch invocation

use time, printing or sorting files by:

 

Sorting the output

use time, printing or sorting files by:

 

Sorting the output

use time, show the most recent:

 

du invocation

user IDs, disambiguating:

 

Disambiguating names and IDs

user information, commands for:

 

User information

user name, printing:

 

logname invocation

user names, disambiguating:

 

Disambiguating names and IDs

usernames, printing current:

 

users invocation

users:

 

users invocation

UTC:

 

Options for date

utmp:

 

logname invocation

utmp:

 

users invocation

utmp:

 

who invocation

V

valid file names, checking for:

 

pathchk invocation

variable-length records, converting to fixed-length:

 

dd invocation

vdir:

 

vdir invocation

verbose ls format:

 

What information is listed

verifying MD5 checksums:

 

md5sum invocation

verifying MD5 checksums:

 

md5sum invocation

verifying MD5 checksums:

 

md5sum invocation

verifying MD5 checksums:

 

md5sum invocation

verifying MD5 checksums:

 

md5sum invocation

version number sort:

 

sort invocation

version number, finding:

 

Common options

version of kernel:

 

uname invocation

version, sorting option for ls:

 

Sorting the output

version-control Emacs variable:

 

Backup options

VERSION_CONTROL:

 

Backup options

VERSION_CONTROL:

 

cp invocation

VERSION_CONTROL:

 

install invocation

VERSION_CONTROL:

 

mv invocation

VERSION_CONTROL:

 

ln invocation

vertical sorted files in columns:

 

General output formatting

vtn:

 

Output

W

wc:

 

wc invocation

week in date strings:

 

Relative items in date strings

werase:

 

Characters

who:

 

who invocation

who am i:

 

who invocation

whoami:

 

whoami invocation

word count:

 

wc invocation

working context:

 

Working context

working directory, printing:

 

pwd invocation

wrap data:

 

base64 invocation

wrapping long input lines:

 

fold invocation

writable file check:

 

Access permission tests

write permission:

 

Mode Structure

write permission, symbolic:

 

Setting Permissions

write, allowed:

 

who invocation

wtmp:

 

users invocation

wtmp:

 

who invocation

X

xcase:

 

Local

xdigit:

 

Character sets

xfs file system type:

 

df invocation

XON/XOFF flow control:

 

Input

Y

year in date strings:

 

Relative items in date strings

yes:

 

yes invocation

yesterday:

 

Options for date

yesterday in date strings:

 

Relative items in date strings

yottabyte, definition of:

 

Block size

Youmans, B.:

 

Introduction

Z

zero-length string check:

 

String tests

zettabyte, definition of:

 

Block size

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