Ubuntu 18 开机自启

ubuntu18.04 不再使用initd管理系统，改用systemd

1. 设置启动参数
   vim /lib/systemd/system/rc.local.service

[Unit]
Description=/etc/rc.local Compatibility
Documentation=man:systemd-rc-local-generator(8)
ConditionFileIsExecutable=/etc/rc.local
After=network.target

[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
RemainAfterExit=yes
GuessMainPID=no

#这一段原文件没有，需要自己添加
[Install]
WantedBy=multi-user.target
Alias=rc-local.service

2. 添加软链接

ln -s /lib/systemd/system/rc.local.service /etc/systemd/system/rc.local.service

3. 创建服务

touch /etc/rc.local 

4. 赋可执行权限

chmod 755 /etc/rc.local 

5. 编辑自启动服务
   vim /etc/rc.local

#开机打印hello
echo "hello" > /etc/test.log
# 开机启动zookeeper
/usr/local/zookeeper/bin start