audacious --version (return code: 0)
Audacious 3.9 (Ubuntu package)
audacious --help (return code: 0)
Usage: audacious [OPTION] ... [FILE] ...
-1, -2, -3, etc. Select instance to run/control
-h, --help Show command-line help
-v, --version Show version
-p, --play Start playback
-u, --pause Pause playback
-t, --play-pause Pause if playing, play otherwise
-s, --stop Stop playback
-r, --rew Skip to previous song
-f, --fwd Skip to next song
-e, --enqueue Add files to the playlist
-E, --enqueue-to-temp Add files to a temporary playlist
-m, --show-main-window Display the main window
-j, --show-jump-box Display the jump-to-song window
-H, --headless Start without a graphical interface
-q, --quit-after-play Quit on playback stop
-V, --verbose Print debugging messages (may be used twice)