grep lines before and after

magnum81 · 08-13-2006, 12:53 AM

Is there a way to make grep display a certain number or lines before and after the targer search?

Nevermind.
-B n for before
-N n for after
where n is the number of lines

thedonkdonk · 08-13-2006, 01:03 AM

Yes. Use -A for number of lines before matching line and -B for number of line after matching line. Example.
ifconfig | grep -B 2 inet will outupt lines that will show you all of your interface names that have a IPv4 address.

witkacy26 · 07-29-2011, 02:57 PM

-A is for [A]fter and -B is for [B]efore

theNbomr · 07-29-2011, 04:52 PM

There is also -C (Context), which shows 'n' lines before & after found text.

--- rod.