gdb: Search
9.4 Searching Source Files
==========================
There are two commands for searching through the current source file for
a regular expression.
'forward-search REGEXP'
'search REGEXP'
The command 'forward-search REGEXP' checks each line, starting with
the one following the last line listed, for a match for REGEXP. It
lists the line that is found. You can use the synonym 'search
REGEXP' or abbreviate the command name as 'fo'.
'reverse-search REGEXP'
The command 'reverse-search REGEXP' checks each line, starting with
the one before the last line listed and going backward, for a match
for REGEXP. It lists the line that is found. You can abbreviate
this command as 'rev'.