Ubuntu 查看服务、启动服务|停止服务|重启服务，查看服务状态的命令
一、通过service 命令
通过service，比如
sudo service service-name status
sudo service service-name start
sudo service service-name stop
sudo service service-name restart
查看全部服务列表
sudo service –status-all
二、通过 systemctl
sudo systemctl start service-name
sudo systemctl stop service-name
sudo systemctl restart service-name
list-units [PATTERN…] List loaded units
list-sockets [PATTERN…] List loaded sockets ordered by address
list-timers [PATTERN…] List loaded timers ordered by next elapse
start NAME… Start (activate) one or more units
stop NAME… Stop (deactivate) one or more units
reload NAME… Reload one or more units
restart NAME… Start or restart one or more units
try-restart NAME… Restart one or more units if active
reload-or-restart NAME… Reload one or more units if possible,otherwise start or restart
try-reload-or-restart NAME… If active, reload one or more units,if supported, otherwise restart