systemd/xxx.service
将此文件复制到/usr/lib/systemd/system/目录
赋予可执行权限，chmod +x xxx.service
启动服务：systemctl start xxx.service
停止服务：systemctl stop xxx.service
重启服务：systemctl restart xxx.service
查看服务：systemctl status xxx.service
加入开机启动：systemctl enable xxx.service
禁止开机启动：systemctl disable xxx.servie
重载服务：systemctl reload xxx.service