Sed/Examples

Next: Limitations, Previous: advanced sed, Up: Top   [Contents][Index]

7 Some Sample Scripts

Here are some sed scripts to guide you in the art of mastering sed.

Useful one-liners:

• Joining lines:

  

Some exotic examples:

• Centering lines:

  

• Increment a number:

  

• Rename files to lower case:

  

• Print bash environment:

  

• Reverse chars of lines:

  

• Text search across multiple lines:

  

• Line length adjustment:

  

Emulating standard utilities:

• tac:

  

Reverse lines of files

• cat -n:

  

Numbering lines

• cat -b:

  

Numbering non-blank lines

• wc -c:

  

Counting chars

• wc -w:

  

Counting words

• wc -l:

  

Counting lines

• head:

  

Printing the first lines

• tail:

  

Printing the last lines

• uniq:

  

Make duplicate lines unique

• uniq -d:

  

Print duplicated lines of input

• uniq -u:

  

Remove all duplicated lines

• cat -s:

  

Squeezing blank lines

Next: Limitations, Previous: advanced sed, Up: Top   [Contents][Index]