shutdown w konsoli
When called from init, shut down only if one of the users listed in the file /etc/shutdown.allow is currently logged in.
Cancel a shutdown that is in progress.
Reboot fast, by suppressing the normal call to fsck when rebooting.
Force a filesystem check (fsck) on reboot.
Halt the system when shutdown is complete.
Print the warning message, but suppress actual shutdown.
Reboot the system when shutdown is complete.
Ensure a num-second delay between killing processes and changing the runlevel.
Przykłady shutdown działanie w Słownik polecenie S