6 D: Jump forwards or backwards.
8 H: Negative values mean to jmp backwards the given amount of seconds.
13 H: This prints all paths of the playlist. The currently active file is
14 H: marked with an asterisk.
17 D: Print information about the current file.
19 H: This is the audio file selector info.
22 D: Start or resume playing.
24 H: Without <num>, starts playing at the current position. Otherwise, the
25 H: corresponding file is loaded and playback is started.
30 H: When paused, it is still possible to jump around in the file via the jmp and ff
34 D: Print list of active tasks.
36 H: Mainly useful for debugging.
41 H: Pressing CTRL+D causes EOF on stdin which also exits para_play.