起動

$ sudo systemctl start [UNIT]
$ sudo service [UNIT] start

例

$ sudo systemctl start nginx
$ sudo service nginx start

設定反映 (config 読み込み)

設定の適用なので、サービスの瞬断は無いはず。

$ sudo systemctl reload [UNIT]
$ sudo service [UNIT] reload

例

$ sudo systemctl reload nginx
$ sudo service nginx reload

サービスの瞬断あり。

$ sudo systemctl restart [UNIT]
$ sudo service [UNIT] restart

例

$ sudo systemctl reload nginx
$ sudo service nginx reload

$ sudo systemctl stop [UNIT]
$ sudo service [UNIT] stop

例

$ sudo systemctl stop nginx
$ sudo service nginx stop

$ sudo systemctl stop [UNIT]
$ sudo service [UNIT] stop

例

$ sudo systemctl status nginx
$ sudo service nginx status

サーバー起動時に、自動的にサービスを立ち上げるかどうかの設定。

$ sudo systemctl enable [UNIT]
$ sudo service [UNIT] enable

例

$ sudo systemctl enable nginx
$ sudo service nginx enable

$ sudo systemctl enable [UNIT]
$ sudo service [UNIT] enable

例

$ sudo systemctl enable nginx
$ sudo service nginx enable

$ sudo systemctl list-unit-files --type=service

$ sudo systemctl daemon-reload