[plug] grep command

[Jon Miller]

Need a command  to search through a series of directories and files for a line.
I issued the command grep -ri imap_open *.php3 

Is this correct if looking for the string imap_open (not sure of the casing hence the -i), but I need it to search through all php3 files.

Thanks

Jon L. Miller, MCNE, CNS
Director/Sr Systems Consultant
MMT Networks Pty Ltd
http://www.mmtnetworks.com.au

"I don't know the key to success, but the key to failure
 is trying to please everybody." -Bill Cosby