systemctl

systemd用のCLI

$ sudo systemctl start postfix.service

$ sudo systemctl stop postfix.service

$ sudo systemctl restart postfix.service

$ sudo systemctl list-unit-files -t service

$ sudo systemctl list-unit-files -t service --state=enabled

$ sudo systemctl daemon-reload

$ sudo systemctl daemon-exec

システム起動時のデフォルト設定を調べる

$ sudo systemctl get-default

参考