Gnu/coreutils/basenc-invocation
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3.7 basenc
: Transform data into printable data
basenc
transforms data read from a file, or standard input,
into (or from) various common encoding forms. The encoded form uses
printable ASCII characters to represent binary data.
Synopses:
basenc encoding [option]… [file] basenc encoding --decode [option]… [file]
The encoding
argument is required. If file
is omitted,
reads input from stdin. The -w/--wrap
,-i/--ignore-garbage
,
-d/--decode
options of this command are precisely the same as
for base64
. See base64 invocation.
Supported encoding
s are:
- ‘
--base64
’ Encode into (or decode from with
-d/--decode
) base64 form. The format conforms to RFC 4648#4. Equivalent to thebase64
command.- ‘
--base64url
’ Encode into (or decode from with
-d/--decode
) file-and-url-safe base64 form (using ‘_
’ and ‘-
’ instead of ‘+
’ and ‘/
’). The format conforms to RFC 4648#5.- ‘
--base32
’ Encode into (or decode from with
-d/--decode
) base32 form. The encoded data uses the ‘ABCDEFGHIJKLMNOPQRSTUVWXYZ234567=
’ characters. The format conforms to RFC 4648#6. Equivalent to thebase32
command.- ‘
--base32hex
’ Encode into (or decode from with
-d/--decode
) Extended Hex Alphabet base32 form. The encoded data uses the ‘0123456789ABCDEFGHIJKLMNOPQRSTUV=
’ characters. The format conforms to RFC 4648#7.- ‘
--base16
’ Encode into (or decode from with
-d/--decode
) base16 (hexadecimal) form. The encoded data uses the ‘0123456789ABCDEF
’ characters. The format conforms to RFC 4648#8.- ‘
--base2lsbf
’ Encode into (or decode from with
-d/--decode
) binary string form (‘0
’ and ‘1
’) with the least significant bit of every byte first.- ‘
--base2msbf
’ Encode into (or decode from with
-d/--decode
) binary string form (‘0
’ and ‘1
’) with the most significant bit of every byte first.- ‘
--z85
’ Encode into (or decode from with
-d/--decode
) Z85 form (a modified Ascii85 form). The encoded data uses the ‘0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTU VWXYZ.-:+=^!/*?&<>()[]{}@%$#
’. characters. The format conforms to ZeroMQ spec:32/Z85.When encoding with
--z85
, input length must be a multiple of 4; when decoding with--z85
, input length must be a multiple of 5.
Encoding/decoding examples:
$ printf '\376\117\202' | basenc --base64 /k+C $ printf '\376\117\202' | basenc --base64url _k-C $ printf '\376\117\202' | basenc --base32 7ZHYE=== $ printf '\376\117\202' | basenc --base32hex VP7O4=== $ printf '\376\117\202' | basenc --base16 FE4F82 $ printf '\376\117\202' | basenc --base2lsbf 011111111111001001000001 $ printf '\376\117\202' | basenc --base2msbf 111111100100111110000010 $ printf '\376\117\202\000' | basenc --z85 @.FaC $ printf 01010100 | basenc --base2msbf --decode T $ printf 01010100 | basenc --base2lsbf --decode *
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