Systemctl
Basic Usage
systemctl status
systemctl list-units
systemctl list-units --all
systemctl list-units --failed
systemctl list-units --type=service
- List services:
systemctl list-unit-files
[2] - List services enabled:
systemctl list-unit-files --state=enabled
- View status of a service:
systemctl status docker
- Show properties:
systemctl show sshd.service
- View dependencies:
systemctl list-dependencies sshd.service
- Creating new services in:
/etc/systemd/system/
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/system_administrators_guide/sect-managing_services_with_systemd-unit_files systemctl -t mount
systemctl list-units -t mount
systemctl enable FS_UNIT_NAME.mount
sudo systemctl enable --now snapd.socket
Activities
Basic
- Read systemd Cheat-sheet: https://www.linuxtrainingacademy.com/systemd-cheat-sheet/
- Enable or disable Automatic updates in your Ubuntu machine
Advanced
- Read Why are reboot, shutdown and poweroff symlinks to systemctl?: https://unix.stackexchange.com/questions/77029/why-are-reboot-shutdown-and-poweroff-symlinks-to-systemctl/77030#77030
- Create a service that restart on-failure. https://superuser.com/questions/507576/how-to-automatically-restart-a-linux-background-process-if-it-fails
See also
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