grep with negative lookbehind
- by Dan Fabulich
I'm trying to grep through a bunch of files in nested subdirectories to look for regular expression matches; my regex requires negative lookbehind.
Perl has negative lookbehind, but as far as I can tell GNU grep doesn't support negative lookbehinds.
What's the easiest way to get an equivalent to GNU grep that supports negative lookbehinds?
(I guess I could write my own mini-grep in Perl, but that doesn't seem like it should be necessary. My copy of the Perl Cookbook includes source for tcgrep; is that what I should use? If so, where's the latest version? Don't tell me I have to type this entire program!)