ubuntu 20.04.2.0 lts关闭 CUPS 打印整套服务cups 主服务 cups‑browsed 浏览服务不使用打印机就关掉以后要用打印机再打开。sudo systemctl disable --now cups.servicesudo systemctl disable --now cups-browsed.service#彻底禁用打印相关的socket、path单元sudo systemctl disable --now cups.socketsudo systemctl disable --now cups.path校验全部状态命令systemctl is-enabled cups.servicesystemctl is-enabled cups.socketsystemctl is-enabled cups.pathsystemctl is-enabled cups-browsed.service全部输出disabled才算整套打印服务完全禁止开机自启。