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SHUTDOWN(8) | shutdown | SHUTDOWN(8) |
NAME¶
shutdown - Halt, power-off or reboot the machineSYNOPSIS¶
shutdown
[OPTIONS...] [TIME] [WALL...]
DESCRIPTION¶
shutdown may be used to halt, power-off or reboot the machine. The first argument may be a time string (which is usually now). Optionally, this may be followed by a wall message to be sent to all logged-in users before going down. The time string may either be in the format hh:mm for hour/minutes specifying the time to execute the shutdown at, specified in 24h clock format. Alternatively it may be in the syntax +m referring to the specified number of minutes m from now. now is an alias for +0, i.e. for triggering an immediate shutdown. If no time argument is specified, +1 is implied. Note that to specify a wall message you must specify a time argument, too. If the time argument is used, 5 minutes before the system goes down the /run/nologin file is created to ensure that further logins shall not be allowed.OPTIONS¶
The following options are understood: --helpPrints a short help text and exits.
-H, --halt
Halt the machine.
-P, --poweroff
Power-off the machine (the default).
-r, --reboot
Reboot the machine.
-h
Equivalent to --poweroff, unless
--halt is specified.
-k
Don't halt, power-off, reboot, just write wall
message.
--no-wall
Don't send wall message before halt,
power-off, reboot.
-c
Cancel a pending shutdown. This may be used
cancel the effect of an invocation of shutdown with a time argument
that is not +0 or now.
EXIT STATUS¶
On success 0 is returned, a non-zero failure code otherwise.NOTES¶
This is a legacy command available for compatibility only.SEE ALSO¶
systemd 204 |