MAN page from OpenSuSE systemd-sysvinit-246.6-lp152.mo.1.5.x86_64.rpm
Section: shutdown (8)
shutdown - Halt, power-off or reboot the machine
- shutdown [OPTIONS...] [TIME] [WALL...]
shutdownmay 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/nologinfile is created to ensure that further logins shall not be allowed.
The following options are understood:
- Print a short help text and exit.
- Halt the machine.
- Power-off the machine (the default).
- Reboot the machine.
- Equivalent to--poweroff, unless--haltis specified.
- Do not halt, power-off, reboot, just write wall message.
- Do not send wall message before halt, power-off, reboot.
- 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".
On success, 0 is returned, a non-zero failure code otherwise.
- EXIT STATUS
- SEE ALSO
This document was created byman2html,using the manual pages.