Extract and list Quake .pak archive files.
qunpak PAK0.PAK
will extract PAK0.PAK.
It's also possible to simply list its content:
qunpak -l PAK0.PAK
Only some files can be extracted by specifying a glob-pattern ("*" will match slashes and dots):
qunpak PAK0.PAK "*.wav"
will extract all .wav files from the root content in PAK0.PAK.
By default, files are extracted in current directory, but another directory can be used:
qunpak -O /other/dir/where/to/extract PAK0.PAK