Commands and Locations

  • custom services are stored here: /etc/systemd/system
  • analyse security of service unit: systemd-analyze security <service_unit>
  • restart a service: systemctl restart <application_name>.service
  • show logs of a service: journalctl -u <application_name>.service

List Services

  • list enabled services: systemctl list-unit-files --state=enabled
  • list running services: systemctl list-units --type=service
  • list failed services: systemctl --failed
  • list timers: systemctl list-timers

List all since boot

  • all boot cycles: journalctl -k -b all
  • current boot : journalctl -k
  • last boot: journalctl -k -b -1
  • two boots prior: journalctl -k -b -2
  • and so on


  • delete old journal files (ony keep last 2 days): journalctl --vacuum-time=2d
Last modified February 16, 2023: Update (ed91460)