Centos7配置阿里源

https://blog.youkuaiyun.com/pengpengpeng85/article/details/94461152

#!/bin/bash

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum clean all
yum makecache

# 备份旧的 yum 源
# 下载阿里云 repo
# 清除缓存
# 生成缓存
 

保存脚本，添加执行权限，运行即可。