ack2 (ack)
ack 2 is no longer being maintained. ack 3 is the latest version
ack2 is a programmer-centric search tool written in Perl that serves as a smarter, faster alternative to grep for source trees. It defaults to searching only relevant files while skipping build artifacts, VCS directories, minified bundles, and other noise, which dramatically reduces false hits. Filetype filtering is first-class: you can target languages by name (--perl, --python, --js) or define your own groups, and ack maps common extensions automatically. Results are colorized with context...