I press ALT+F2 key on my keyboard, and get the launcher HUD up. From there I enter a command as I would in a shell, specifically
vlc ~/Music/* -Z. If done from a shell, vlc starts and begins to play music.
However, when done from the launcher, VLC replies:
File reading failed:
VLC could not open the file "/home/[username]/Music/*". (No such file or directory) user Your input can't be opened:
VLC is unable to open the MRL 'file:///home/[username]/Music/%2A'. Check the log for details.
I can't quite figure out what the difference is.