From what I can tell, there are four special logins from the main login window:
>console - get to a command line console login prompt
>exit - causes the loginwindow process to exit, and eventually return (this can take quite a few seconds sometimes, but from what I've seen, it does come back)
>restart - restarts the machine
>power - full shutdown and poweroff
>console - get to a command line console login prompt
>exit - causes the loginwindow process to exit, and eventually return (this can take quite a few seconds sometimes, but from what I've seen, it does come back)
>restart - restarts the machine
>power - full shutdown and poweroff