grep, egrep, and fgrep.

[Jason Wu <jwu homecom com>]

Hi all,

I know the diff between grep and egrep, but what about fgrep?
What does it do? I did man grep, egrep and fgrep and they all returned to 
the same man page. It just explained fgrep is the same as grep -F but never 
explained what -F is for.

thanks,