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。
1、打开/etc/systemd/system/rc-local.service，在后面加上
[Install] WantedBy=multi-user.target Alias=rc-local.service
2、创建文件rc.local
sudo vi /etc/rc.local
3、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
4、给rc.local加上权限
sudo chmod +x /etc/rc.local
5、启用服务
sudo systemctl enable rc-local
原文：https://www.cnblogs.com/gentlemanwuyu/p/11613256.html