sed Quick Start

Thu, 23 Jan 2014 23:53:51 +0800

sed and awk are powerful tools for text stream processing. This article provides a quick-start reference for the sed command:

Delete Command

sed 3d abc.txt

This command deletes the third line.

	sed '1~2d' abc.txt
	sed '2~2d' abc.txt

The first command deletes odd-numbered lines, and the second deletes even-numbered lines.

	sed '5,11d' abc.txt

Deletes lines 5 through 11.