How to use grep to get context after and before matching lines

[pneely]

My variants of grep (Solaris 7) does not understand the following options:
-A NUM, --after-context=NUM
Print NUM lines of trailing context after matching lines.
-B NUM, --before-context=NUM
Print NUM lines of leading context before matching lines.

How else can I get a number of lines before and after the matching lines ?

 

[dobbyn]

The --after-context and --before-context options are GNU extensions to grep, and are not available on default Unix versions of grep.

You can download the GNU version from

http://www.gnu.org/software/grep/grep.html

 

[pneely]

Yes, thank you..the GNU version worked well. Thanks for responding......