最近服务器需要做一些开机启动服务，我的虚拟机是fedora23 的 网上看了下配置如下，试了下 也确实OK
sudo vim /etc/rc.d/rc.local
在/etc/rc.d/rc.local文件中写入, 然后使用:wq命令 保存并退出.
#!/bin/bash
# 在这个文件中写入开机启动需要执行的命令
赋予可执行权限:
sudo chmod+x /etc/rc.d/rc.local
设置开机启动:
sudo systemctl enable rc-local.service
如果出现以下错误提示:
The unit files have no [Install] section. They are not meant to be enabled
using systemctl.
Possible reasons for having this kind of units are:
1) A unit may be statically enabled by being symlinked from another unit's
.wants/ or .requires/ directory.
2) A unit's purpose may be to act as a helper for some other unit which has
a requirement dependency on it.
3) A unit may be started when needed via activation (socket, path, timer,
D-Bus, udev, scripted systemctl call, ...).
sudo vim /usr/lib/systemd/system/rc-local.service
在rc-local.service文件末尾加入:
[Install]
WantedBy=multi-user.target
并重新设置开机启动:
sudo systemctl enable rc-local.service
重启计算机，完成！
reboot
但是服务器是Centos6.7的，没有systemctl这个命令 网上简单查了下，也没找到设置的方式，后来查到一篇文章
说是只要chmod +x /etc/rc.d/rc.local 即可，
试了下，在re.local里面写了个 echo ccc > ~/a.txt
直接重启机器,果然a.txt 里面内容是ccc
记录一下，免得忘记。