systemctl 基本操作

以nginx服务为例

启动服务

systemctl start nginx

关闭服务

systemctl stop nginx

重启服务

systemctl restart nginx

显示服务的状态

systemctl status nginx

在开机时启用服务

systemctl enable nginx

在开机时禁用服务

systemctl disable nginx

查看服务是否开机启动

systemctl is-enabled nginx

查看已启动的服务列表

systemctl list-unit-files|grep enabled

查看启动失败的服务列表

systemctl --failed