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+> Ack is designed as a replacement for 99% of the uses of grep.
+
+[Ack](https://metacpan.org/module/App::Ack) is a really nice tool for searching your source code. It's faster than grep because he already knows what you want : searching your sources files :)
+
+By default it will not search in SCM files (.git, .svn, ...), backups files (source.pl~, source.pl.bak, ...). You can specify what kind of files you want (`--perl`, `--cc`, ...), make it match some regex with `--match`, ...
+
+And you can set some defaults configuration in a .ackrc file ! Mine looks like this:
+
+``` bash
+--sort-files
+--color
+--context=1
+--follow
+```
+
+Check also: [vim with ack integration](http://use.perl.org/use.perl.org/_Ovid/journal/36430.html).
+
+Oh, and it's the only program with `--thpppt` option!