Examples (sed, a stream editor)

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