用一個神奇的方法配置yum源
導讀我們在使用Red Hat系列的Linux系統時經常要配置yum源，本文件提出一個快速配置yum源的方法，就是用shell指令碼來實現。
首先確保系統已掛載好映象檔案，然後執行vim rhel7.repo.sh命令，這個命令是建立一個指令碼。
在開啟的檔案中新增以下內容：
寫完指令碼後記得賦予指令碼執行許可權：
chmod 755 rhel7.repo.sh或者chmod +x rhel7.repo.sh
賦予指令碼執行許可權後再執行指令碼：
bash rhel7.repo.sh 或者./rhel7.repo.sh
測試：
[root@localhost Desktop]# yum install -y httpd
Loaded plugins: langpacks, product-id, search-disabled-repos, subion-manager
This system is not registered to Red Hat Subion Management. You can use subion-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!
最後出現Complete!說明httpd安裝成功，同時也說明了yum倉庫配置成功！