#服务 屏蔽&启用（服务被屏蔽后该服务就无法通过systemctl进行启停管理） ${su} systemctl mask apt-daily.service ${su} systemctl mask apt-daily-upgrade.service ${su} systemctl mask nmbd.service ${su} systemctl mask plymouth-quit-wait.service ${su} systemctl mask NetworkManager-wait-online.service