If deleted, they will be reconstructed on the next start of their timer.Ī service unit file can be scheduled with a timer out-of-the-box. These are zero length files which mark the last time each timer was run. If a timer gets out of sync, it may help to delete its stamp-* file in /var/lib/systemd/timers (or ~/.local/share/systemd/ in case of user timers).The status of a service started by a timer will likely be inactive unless it is currently being triggered.To list all timers (including inactive), use systemctl list-timers -all.Thu 19:37:03 CEST 11h left Wed 19:37:03 CEST 12h ago systemd-tmpfiles-clean.timer rviceįri 00:00:00 CEST 15h left Thu 00:00:13 CEST 8h ago logrotate.timer rvice $ systemctl list-timers NEXT LEFT LAST PASSED UNIT ACTIVATES To use a timer unit enable and start it like any other unit (remember to add the. If necessary, it is possible to control a differently-named unit using the Unit= option in the timer's section. service does not require an section as it is the timer units that are enabled. To use it, add WantedBy=timers.target to the section of your timer and enable the timer unit. Note: systemd offers the target timers.target which sets up all timers that should be active after boot (see systemd.special(7) for details). The argument syntax for calendar events and time spans is defined in systemd.time(7).
#BOOT TIMER UTILITY FULL#
Common monotonic timers include OnBootSec and OnUnitActiveSec.įor a full explanation of timer options, see the systemd.timer(5). There are number of different monotonic timers but all have the form: On TypeSec=. They stop if the computer is temporarily suspended or shut down. Monotonic timers activate after a time span relative to a varying starting point.The option OnCalendar= is used to define them. wallclock timers) activate on a calendar event, the same way that cronjobs do. Timers are like other unit configuration files and are loaded from the same paths but include a section which defines when and how the timer activates. Timers are systemd unit files with a suffix of.
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