用一个神奇的方法配置yum源

导读	我们在使用Red Hat系列的时经常要配置yum源，本文档提出一个快速配置yum源的方法，就是用shell脚本来实现。

首先确保系统已挂载好镜像文件，然后执行vim rhel7.repo.sh命令，这个命令是创建一个脚本。

在打开的文件中添加以下内容：

写完脚本后记得赋予脚本执行权限：

chmod 755 rhel7.repo.sh或者chmod +x rhel7.repo.sh

赋予脚本执行权限后再运行脚本：

bash rhel7.repo.sh 或者./rhel7.repo.sh

测试：

[root@localhost Desktop]# yum install -y httpd
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Resolving Dependencies
--> Running transaction check
---> Package httpd.x86_64 0:2.4.6-40.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

============================================================================================================
 Package                Arch                    Version                        Repository              Size
============================================================================================================
Installing:
 httpd                  x86_64                  2.4.6-40.el7                   rhel7                  1.2 M

Transaction Summary
============================================================================================================
Install  1 Package

Total download size: 1.2 M
Installed size: 3.7 M
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : httpd-2.4.6-40.el7.x86_64                                                                1/1 
  Verifying  : httpd-2.4.6-40.el7.x86_64                                                                1/1 

Installed:
  httpd.x86_64 0:2.4.6-40.el7                                                                               

Complete!

最后出现Complete!说明httpd安装成功，同时也说明了yum仓库配置成功！
注：我用的系统是RedHat7，用其他系统的话只需要改yum仓库名称即可。