Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

Command Description

systemctl

start

servicename

service

Start   a   service

systemctl   stop

servicename

service

Stop    a   service

systemctl

restart

servicename

service

Restart a   service

systemctl

reload

servicename

service

Reload  a   service (this   only    tells   the service to  reload  its

configuration   files,  rather  than    restart the entire

service;    typically,  restarting  is  a   safer   option)

systemctl

status

servicename

service

Show    the status  of  a   service

systemctl

condrestart

servicename

service

Restart a   service if  it  is  already running

systemctl

enable

servicename

service

Enable  a   service at  startup

systemctl

disable

servicename

service

Disable a   service at  startup (typically  to  remove  a

service from    the list    of  those   starting    automatically   at

boot)

A few standard commands are replaced in systemd, including the ones in