[root@wx-local01 ~]# cd  /etc/rc.d/


[root@wx-local01 rc.d]# ls -l  /etc/rc.d/
总用量 4
drwxr-xr-x. 2 root root 107 9月   5 10:40 init.d
drwxr-xr-x. 2 root root  45 11月 17 2020 rc0.d
drwxr-xr-x. 2 root root  45 11月 17 2020 rc1.d
drwxr-xr-x. 2 root root  45 11月 17 2020 rc2.d
drwxr-xr-x. 2 root root  72 5月  26 14:02 rc3.d
drwxr-xr-x. 2 root root  72 5月  26 14:02 rc4.d
drwxr-xr-x. 2 root root  72 5月  26 14:02 rc5.d
drwxr-xr-x. 2 root root  45 11月 17 2020 rc6.d
-rwxr-xr-x. 1 root root 881 5月  27 16:06 rc.local

[root@wx-local01 rc.d]# tree /etc/rc.d/
/etc/rc.d/
├── init.d
│   ├── functions
│   ├── mysql -> /home/wx/mysql/support-files/mysql.server
│   ├── netconsole
│   ├── network
│   ├── README
│   └── syschronzed_date
├── rc0.d
│   ├── K50netconsole -> ../init.d/netconsole
│   └── K90network -> ../init.d/network
├── rc1.d
│   ├── K50netconsole -> ../init.d/netconsole
│   └── K90network -> ../init.d/network
├── rc2.d
│   ├── K50netconsole -> ../init.d/netconsole
│   └── S10network -> ../init.d/network
├── rc3.d
│   ├── K50netconsole -> ../init.d/netconsole
│   ├── S10network -> ../init.d/network
│   └── S63syschronzed_date -> ../init.d/syschronzed_date
├── rc4.d
│   ├── K50netconsole -> ../init.d/netconsole
│   ├── S10network -> ../init.d/network
│   └── S63syschronzed_date -> ../init.d/syschronzed_date
├── rc5.d
│   ├── K50netconsole -> ../init.d/netconsole
│   ├── S10network -> ../init.d/network
│   └── S63syschronzed_date -> ../init.d/syschronzed_date
├── rc6.d
│   ├── K50netconsole -> ../init.d/netconsole
│   └── K90network -> ../init.d/network
└── rc.local

8 directories, 24 files

2、设置开机自启动命令

[root@wx-local01 rc.d]# vim /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

#开机执行脚本启动harbor
sh /scripts/shell/start_harbor/power_on_self_starting_harbor.sh

3、设置执行权限【不设置执行权限，启动后不执行文件中内容】

[root@wx-local01 rc.d]# chmod +x /etc/rc.d/rc.local

如：

脚本执行权限要打开：

执行命令 chmod +x /etc/rc.d/rc.local

在rc.local 开机脚本的文件加入

sh /etc/init.d/rinetd start  

然后保存即可