[CentOS] Grep: show me this line and the next N lines?

--On Tuesday, May 31, 2011 1:08 AM +0300 Dotan Cohen <dotancohen at gmail.com> 
wrote:

> Can grep show the matching lines and the next N lines after a match?

If I'm just inspecting a file I use less and the "/" command to search up 
to the next occurrence of a regular expression. Use the "?" command to 
search backwards. See the man page for less for lots more options.