$ [sudo] npm i -g vlc-cli

$ [sudo] pip install vlc-cli

usage: vlc command [options]

Available commands:
    play                    play current item
    playing                 detect playing
    pause                   pause

    volume                  get/set volume

    path                    current item path
    duration                duration
    time                    time

    fullscreen-detect       return true/false if fullscreen active
    fullscreen-enter        enter fullscreen
    fullscreen-exit         exit fullscreen

    kill                    kill VLC.app process
    pid                     VLC.app pid

$ vlc open "path/to/pron.avi"
$ vlc pause
$ vlc play

$ vlc volume 42
$ vlc volume
42

$ vlc fullscreen-enter
$ vlc fullscreen-detect
true
$ vlc fullscreen-exit