timer

If you have a Bash script that needs to run periodically, you can run it using a crontab entry.  But you can also have it invoked by Systemd using systemd.timer. Furthermore, you can run Systemd services as  user-level services instead of the typical system-level service for even further isolation. Running via Systemd provides more powerful … Ubuntu: Running a bash script periodically with a user-level Systemd timer