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systemctl list-timersNotes
Primary overview of systemd-scheduled jobs.
Linux systemd Units and Timers Cheat Sheet
Work with timer units, socket activation, path units, transient services, and user services.
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Timers
Schedule jobs with systemd timer units.
bash
systemctl list-timers --allNotes
Useful for complete inventory.
bash
systemctl status logrotate.timerNotes
Shows schedule information and recent trigger history.
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sudo systemctl enable --now myjob.timerNotes
Standard timer activation pattern.
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sudo systemctl start myjob.timerNotes
Good for testing timer unit setup.
Run the timer's service manually
Start the paired service unit directly.
bashANYsystemctltimerservice
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sudo systemctl start myjob.serviceNotes
Useful for validating the service command without waiting for the timer.
Other Unit Types
Work with sockets, paths, mounts, and targets.
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systemctl list-units --type=socketNotes
Useful for debugging socket activation.
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systemctl list-units --type=pathNotes
Path units can trigger services on filesystem changes.
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systemctl list-units --type=mountNotes
Handy when troubleshooting mounts and dependencies.
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systemctl list-units --type=targetNotes
Targets group other units into states.
User Units and Transient Units
Work with per-user managers and one-off units.
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systemctl --user list-unitsNotes
Useful for rootless services and desktop sessions.
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systemctl --user enable --now syncthing.serviceNotes
No sudo required for your own user manager.
Enable linger for user
Keep user services running without an active login session.
bashANYloginctllingeruser
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sudo loginctl enable-linger jonNotes
Important for persistent user services on servers.
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systemd-run --unit=adhoc-backup --description="Ad hoc backup" /usr/local/bin/backup.shNotes
Great for controlled one-off execution under systemd supervision.
Run command in transient scope
Place an existing process subtree under a systemd scope.
bashANYsystemd-runscopeinteractive
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systemd-run --scope rsync -av ./src/ /mnt/backup/Notes
Useful for interactive commands you still want systemd to track.
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