O Ubuntu 15.04 e acima estão usando o systemd, no entanto, ainda é suportado pelo SysV init.
Para iniciar, parar, reiniciar, verificação de status:
systemctl <action> <prog>
Por exemplo:
root@mylenovo:~# systemctl status cups ● cups.service - CUPS Scheduler Loaded: loaded (/lib/systemd/system/cups.service; enabled; vendor preset: enabled) Active: active (running) since Sel 2015-11-10 20:45:33 MYT; 8min ago Docs: man:cupsd(8) Main PID: 710 (cupsd) CGroup: /system.slice/cups.service ├─710 /usr/sbin/cupsd -l ├─789 /usr/lib/cups/notifier/dbus dbus:// ├─790 /usr/lib/cups/notifier/dbus dbus:// ├─791 /usr/lib/cups/notifier/dbus dbus:// ├─794 /usr/lib/cups/notifier/dbus dbus:// └─796 /usr/lib/cups/notifier/dbus dbus:// Nov 10 20:45:33 mylenovo systemd[1]: Started CUPS Scheduler.