systemctl

Control the systemd system and service manager. More information: https://www.freedesktop.org/software/systemd/man/systemctl.html.

• Show all running services:

systemctl status

• List failed units:

systemctl --failed

• Start/Stop/Restart/Reload/Show the status a service:

systemctl start|stop|restart|reload|status unit

• Enable/Disable a unit to be started on bootup:

systemctl enable|disable unit

• Reload systemd, scan for new or changed units:

systemctl daemon-reload

• Check if a unit is active/enabled/failed:

systemctl is-active|is-enabled|is-failed unit

• List all service/socket/automount units filtering by running/failed state:

systemctl list-units --type=service|socket|automount --state=failed|running

• Show the contents & absolute path of a unit file:

systemctl cat unit