Sstrhsrtj

I like to use shutdown -h TIME/+DELAY sometimes. However, since the switch to systemd (on Ubuntu), things seem to have changed quite a bit.

Apart from the fact that a previous shutdown command no longer prevents running a new one, I can't figure out how to check for the planned shutdown time of a current shutdown process.

I used to just run ps aux | grep shutdown to see the planned shutdown time.

Now with systemd it just shows something like this:

root      5863  0.0  0.0  13300  1988 ?        Ss   09:04   0:00 /lib/systemd/systemd-shutdownd

How can I check the scheduled shutdown time of such a process?

I tried shutdown -k, but instead of only writing a wall message, it seems to also change the scheduled shutdown time to now+1 minute.

man shutdown(8) says:

The first argument may be a time string (which is usually "now").

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.

Try:

# shutdown +5

# systemctl status systemd-shutdownd.service

You should see something like this:

● systemd-shutdownd.service - Delayed Shutdown Service

Loaded: loaded (/lib/systemd/system/systemd-shutdownd.service; static; vendor preset: enabled)

Active: active (running) since Tue 2015-09-15 09:13:11 UTC; 12s ago

Docs: man:systemd-shutdownd.service(8)

Main PID: 965 (systemd-shutdow)

Status: "Shutting down at Tue 2015-09-15 09:18:11 UTC (poweroff)..."

CGroup: /system.slice/systemd-shutdownd.service

       └─965 /lib/systemd/systemd-shutdownd

Status is Shutting down at Tue 2015-09-15 09:18:11 UTC (poweroff)...

I encountered the same question and found another way to check the shutdown plan, hope it will help others.

When you set a shutdown plan, wall will send a message to everybody logged in with their mesg permission set to yes. For every invocation of wall a notification will be written to syslog. To search the syslog, you could run the command journalctl -u systemd-shutdownd, the -u option could filter the log by unit.

When you run journalctl -u systemd-shutdownd, it will show the shutdown details like below:

[root@dev log]# journalctl -u systemd-shutdownd

-- Logs begin at Mon 2017-06-12 09:39:34 CST, end at Mon 2017-06-12 14:05:04 CST. --

Jun 12 09:39:50 dev.local systemd[1]: Started Delayed Shutdown Service.

Jun 12 09:39:50 dev.local systemd[1]: Starting Delayed Shutdown Service...

Jun 12 09:39:50 dev.local systemd-shutdownd[1249]: Shutting down at Mon 2017-06-12 21:00:00 CST (poweroff)...

Jun 12 09:55:59 dev.local systemd-shutdownd[1249]: Shutdown canceled.

Jun 12 09:56:07 dev.local systemd[1]: Started Delayed Shutdown Service.

Jun 12 09:56:07 dev.local systemd[1]: Starting Delayed Shutdown Service...

Jun 12 09:56:07 dev.local systemd-shutdownd[2885]: Shutdown canceled.

Jun 12 11:54:15 dev.local systemd[1]: Started Delayed Shutdown Service.

Jun 12 11:54:15 dev.local systemd[1]: Starting Delayed Shutdown Service...

Jun 12 11:54:15 dev.local systemd-shutdownd[3178]: Shutting down at Mon 2017-06-12 20:00:00 CST (poweroff)...

# cat /run/systemd/shutdown/scheduled

USEC=1537242600000000

WARN_WALL=1

MODE=poweroff

The USEC is a unix epoch timestamp with microsecond precision, so:

if [ -f /run/systemd/shutdown/scheduled ]; then

  perl -wne 'm/^USEC=(d+)d{6}$/ and printf("Shutting down at: %sn", scalar localtime $1)' < /run/systemd/shutdown/scheduled

fi

will display something like:

Shutting down at: Tue Sep 18 03:50:00 2018

Systemd version is 232-25+deb9u4 running on Debian Stretch .

For newer linux distributions versions you might need to do:

busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager ScheduledShutdown

The method of how shutdown works has changed

Tried on:
- Debian Stretch 9.6
- Ubuntu 18.04.1 LTS

References

• Check if shutdown schedule is active and when it is


• The shutdown program on a modern systemd-based Linux system