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 a service:
  systemctl {{start|stop|restart|reload}} {{unit}}
• Show the status of a unit:
  systemctl status {{unit}}
• Enable/Disable a unit to be started on bootup:
  systemctl {{enable|disable}} {{unit}}
• Mask/Unmask a unit to prevent enablement and manual activation:
  systemctl {{mask|unmask}} {{unit}}
• Reload systemd, scanning for new or changed units:
  systemctl daemon-reload
• Check if a unit is enabled:
  systemctl is-enabled {{unit}}