• 路径 /etc/systemd/system 创建 xxx.service
    • 本例采用 pppoe.service
    • 注意所有路径都是绝对路径! ```shell [Unit] Description=PPP over ethernet After=network-online.target systemd-networkd.service Wants=network-online.target systemd-networkd.service

    [Service] Type=forking ExecStart=/usr/sbin/pppoe-start ExecReload=/usr/sbin/pppoe-stop;/usr/sbin/pppoe-start ExecStop=-/usr/sbin/pppoe-stop ExecStopPost=-ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf Restart=on-failure

    [Install] WantedBy=multi-user.target

    2. ```shell
    3. // 开机启动
    4. sudo systemctl enable httpd 
    6. // 立即运行
    7. sudo systemctl start httpd
    9. // 停止运行
    10. sudo systemctl stop httpd.service
    12. // 杀死进程
    13.  sudo systemctl kill httpd.service
    15. // 重运行
    16.  sudo systemctl restart httpd.service
    18.  // 查看状态
    19.  sudo systemctl status httpd.service