1. Centos7设置开机自动运行脚本

需要自动运行的脚本如下：

[root@bigdata001 ~]#  
[root@bigdata001 ~]# cat restart.sh  
 
nohup echo `date` >> /root/restart.log 2>&1 & 
 
[root@bigdata001 ~]#  

添加执行权限给restart.sh

[root@bigdata001 ~]# 
[root@bigdata001 ~]# chmod +x restart.sh 
[root@bigdata001 ~]# 

添加restart.sh到开机自动执行

[root@bigdata001 ~]#  
[root@bigdata001 ~]# cat /etc/rc.d/rc.local 
#!/bin/bash 
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES 
# 
# It is highly advisable to create own systemd services or udev rules 
# to run scripts during boot instead of using this file. 
# 
# In contrast to previous versions due to parallel execution during boot 
# this script will NOT be run after all other services. 
# 
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure 
# that this script will be executed during boot. 
 
touch /var/lock/subsys/local 
 
/root/restart.sh 
[root@bigdata001 ~]#  

添加执行权限给rc.local

[root@bigdata001 ~]# 
[root@bigdata001 ~]# chmod +x /etc/rc.d/rc.local 
[root@bigdata001 ~]# 

现在reboot重启服务器，查看/root/restart.log日志如下：

[root@bigdata001 ~]#  
[root@bigdata001 ~]# cat date.log  
2021年 11月 15日 星期一 15:17:10 CST 
[root@bigdata001 ~]# 

可以看到重启的时候，已经执行了restart.sh