1、启动命令

[root@xufeng Desktop]# service mysqld start

Redirecting to /bin/systemctl start  mysqld.service

2、关闭命令

[root@xufeng ~]# service mysqld stop

Redirecting to /bin/systemctl stop  mysqld.service

3、重启命令

[root@xufeng ~]# service mysqld restart

Redirecting to /bin/systemctl restart  mysqld.service