Linux开机加载脚本文件rc.local

开机会加载文件中的命令信息  --/etc/rc.local 
[root@oldboy-xiadao ~]# echo "mount /dev/sdb1 /mnt" >>/etc/rc.local
[root@oldboy-xiadao ~]# cat /etc/rc.local 
mount /dev/sdb1 /mnt
centos7的开机加载文件需要添加权限才能生效
[root@xiaoyong ~]# ls -l /etc/rc.d/rc.local
-rw-r--r--. 1 root root 473 Apr 11 2018 /etc/rc.d/rc.local
[root@xiaoyong ~]# chmod a+x /etc/rc.d/rc.local
[root@xiaoyong ~]# ls -l /etc/rc.d/rc.local
-rwxr-xr-x. 1 root root 473 Apr 11 2018 /etc/rc.d/rc.local
重启即刻生效