Systemd

Systemd timers

Learn about systemd timers, the unit type for scheduled tasks and how it differs from cron.

Summary

Learn about the available systemd unit types

Systemd units and their purpose

Which systemd unit types are available and what is their goal? In this article we cover them and show some useful commands related to these units.

Summary

Learn about the available systemd unit types

Relevant systemd commands

Like to learn more about the commands used in this section? Have a look at the cheat sheets or the related command page.

Frequently Asked Questions

How to limit the number of lines with journalctl?

journalctl -u UNIT -n NUMBER

» Full answer and more examples


How to disable a systemd unit or service?

systemctl mask UNIT

» Full answer and more examples


How to enable and start a unit with systemctl?

systemctl enable --now UNIT

» Full answer and more examples


How to show all failed units with systemctl?

systemctl --failed

» Full answer and more examples


See all frequently asked questions for Systemd