ubuntu-18.04不能像ubuntu14一样通过编辑rc.local来设置开机启动脚本，通过下列简单设置后，可以使rc.local重新发挥作用。
将下列内容复制进rc-local.service文件
[Unit] Description=/etc/rc.local Compatibility ConditionPathExists=/etc/rc.local [Service] Type=forking ExecStart=/etc/rc.local start TimeoutSec=0 StandardOutput=tty RemainAfterExit=yes SysVStartPriority=99 [Install] WantedBy=multi-user.target
创建文件rc.local
sudo vi /etc/rc.local
4、将下列内容复制进rc.local文件
#!/bin/sh -e # # rc.local # # This script is executed at the end of each multiuser runlevel. # Make sure that the script will "exit 0" on success or any other # value on error. # # In order to enable or disable this script just change the execution # bits. # # By default this script does nothing. echo "看到这行字，说明添加自启动脚本成功。" > /usr/local/test.log exit 0
5、给rc.local加上权限
sudo chmod +x /etc/rc.local
启用服务
sudo systemctl enable rc-local
启动服务并检查状态
sudo systemctl start rc-local.service sudo systemctl status rc-local.service
8、重启并检查test.log文件
cat /usr/local/test.log
如果能看到内容，说明设置成功，你就可以通过编辑rc.local文件来设置启动脚本了
参考文档： https://www.cnblogs.com/airdot/p/9688530.html
