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安装wget
yum -y install wget
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备份Centos7自带的镜像源文件
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo_back
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下载镜像源文件
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
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下载镜像源文件
wget -O /etc/yum.repos.d/epel-7.repo http://mirrors.aliyun.com/repo/epel-7.repo
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清除缓存
yum clean all
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生成缓存
yum makecache
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更新yum
yum update
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查看系统可用的yum源和所有的yum源
yum repolist enabled yum repolist all
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脚本
#!/bin/bash yum -y install wget mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo_back wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo wget -O /etc/yum.repos.d/epel-7.repo http://mirrors.aliyun.com/repo/epel-7.repo yum clean all yum makecache yum update -y yum repolist enabled yum repolist all
