SHUTDOWN

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/nologinfile is created to ensure that further logins shall not be allowed. 

OPTIONS

The following options are understood:

--help

Print a short help text and exit.

-H, --halt

Halt the machine.

-P, --poweroff

Power-off the machine (the default).

-r, --reboot

Reboot the machine.

-h

Equivalent to--poweroff, unless--haltis specified.

-k

Do not halt, power-off, reboot, just write wall message.

--no-wall

Do not send wall message before halt, power-off, reboot.

-c

Cancel a pending shutdown. This may be used to cancel the effect of an invocation ofshutdownwith a time argument that is not"+0"or"now".

EXIT STATUS

On success, 0 is returned, a non-zero failure code otherwise. 

SEE ALSO

systemd(1),systemctl(1),halt(8),wall(1)

Index

NAME

SYNOPSIS

DESCRIPTION

OPTIONS

EXIT STATUS

SEE ALSO