TOOL » LINUX » SYSTEMCTL

Timer

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Reference:wiki.archlinux.org

Usage

There are user and system timers. If dealing with system timers, root privileges are needed.

shell

systemctl OPTION ACTION mytimer.timer

Check the timers status with:

shell

systemctl --user list-timers --all

Option	Description
`--user`	Use the user service manager.

Action	Description
`start`	Start the service.
`stop`	Stop the service.
`restart`	Restart the service.
`enable`	Enable automatic service startup on boot.
`disable`	Disable automatic service startup on boot.
`list-timers`	List available timers and its status.

After any changes to a timer, run:

shell

systemctl --user daemon-reload

Scope	Path
System	`/etc/systemd/system`
User	`~/.config/systemd/user`

Example of mytimer.timer:

ini

[Unit]
Description=mytimer

[Timer]
OnCalendar=Sat *-*-* 18:00:00
Persistent=true

[Install]
WantedBy=timers.target

Setting	Description
`OnStartupSec`	Activate the timer relative to boot time.
`OnUnitActiveSec`	Activate the timer relative to last activation time.
`OnCalendar`	Defines realtime (cron-like) timers.