CentOS 6.5 / 7.0
1. 编辑 /etc/rc.local
# ll /etc/rc.local lrwxrwxrwx. 1 root root 13 May 9 2018 /etc/rc.local -> rc.d/rc.local
可以看出此文件时一个链接文件，指向/etc/rc.d/rc.local。
增加语句， 执行预设脚本即可，例：开机启动redis
# start redis /usr/local/redis/bin/redis-server /usr/local/redis/redis.conf
