--- syntax: markdown tags: [tldr, linux] source: https://github.com/tldr-pages/tldr.git --- # systemctl-halt > Shut down and halt the system (stop the OS kernel but keep hardware powered on). > See also: `halt`. > More information: . - Halt the system: `systemctl halt` - Halt the system immediately without asking services to stop gracefully: `systemctl halt {{[-f|--force]}}` - Halt the system immediately without sending notifications to logged-in users: `systemctl halt {{[-f|--force]}} --no-wall` - Halt the system immediately without terminating any processes or unmounting filesystems (dangerous, may cause data loss): `systemctl halt {{[-ff|--force --force]}}` - Schedule a halt at a specific time (e.g., 23:00): `systemctl halt --when 23:00` - Schedule a halt after a certain duration (e.g., 2 hours): `systemctl halt --when +2h` - Cancel a scheduled halt: `systemctl halt --when cancel`