2025-01-22
| Command | Description | Example |
|---|---|---|
systemctl start <service> |
Start a service. | systemctl start apache2 |
systemctl stop <service> |
Stop a running service. | systemctl stop apache2 |
systemctl restart <service> |
Restart a service (stop and then start). | systemctl restart apache2 |
systemctl reload <service> |
Reload a service’s configuration without stopping it. | systemctl reload apache2 |
systemctl status <service> |
Show the status of a service, including its current state and logs. | systemctl status apache2 |
systemctl enable <service> |
Enable a service to start automatically on boot. | systemctl enable apache2 |
systemctl disable <service> |
Disable a service from starting on boot. | systemctl disable apache2 |
systemctl is-enabled <service> |
Check if a service is enabled to start on boot. | systemctl is-enabled apache2 |
systemctl list-units |
List all active units (services, targets, etc.). | systemctl list-units |
systemctl list-units --type=service |
List all active services. | systemctl list-units --type=service |
systemctl show <service> |
Show detailed information about a service, including settings and status. | systemctl show apache2 |
systemctl mask <service> |
Mask a service to prevent it from being started manually or automatically. | systemctl mask apache2 |
systemctl unmask <service> |
Unmask a service, allowing it to be started again. | systemctl unmask apache2 |
systemctl daemon-reload |
Reload systemd manager configuration, useful after modifying service unit files. | systemctl daemon-reload |
systemctl reboot |
Reboot the system. | systemctl reboot |
systemctl poweroff |
Power off the system (shutdown). | systemctl poweroff |
systemctl halt |
Halt the system (shutdown without powering off). | systemctl halt |