Oracle Linux: How to Create New systemd Timers

Applies To:

Oracle Cloud Infrastructure - Version N/A and later
Oracle Linux 7/8/9

Goal:

This article is to document how to create new systemd timers, a systemd way of replacing crob jobs.

Solution:

Timer unit files are a type of systemd file that the systemctl utility uses to schedule tasks, similar to the cron utility that uses crontab and other cron jobs for the same purpose.

systemd timers on a brand new Oracle Linux 9 system can look like this:

# systemctl list-unit-files --type=timer --state=enabled

UNIT FILE                                        STATE   PRESET

dnf-makecache.timer                              enabled enabled

logrotate.timer                                  enabled enabled

mlocate-updatedb.timer                           enabled enabled