一、新建xx-setpower.service文件

sudo gedit /etc/systemd/system/xx-setpower.service

[Unit]
Description=XX SetPower Service
After=network.target
Wants=network.target

[Service]
Type=simple
PIDFile=/run/take_up_boot.pid
ExecStart=/usr/bin/take_up_boot.sh
Restart=on-failure
# Don't restart in the case of configuration error
RestartPreventExitStatus=23

[Install]
WantedBy=multi-user.target

二、新建take_up_boot.sh

sudo gedit /usr/bin/take_up_boot.sh

注意：要有可执行权限

echo "hello" > /home/xxx/myfile.txt

三、 设置服务开机启动

systemctl daemon-reload
systemctl start xx-setpower.service
systemctl enable xx-setpower.service

四、查看启动任务的情况：

sudo systemctl status xx-setpower.service

 更改代码的执行权限

sudo chmod a+x /usr/bin/take_up_boot.sh