以下脚本由我学生提交，亲测可用，可以轻松实现切换国内源，按自己喜好拷贝使用其中之一即可。

#!/bin/bash #function:练习 #author:ming  if [ ! -e /root/yum.repos.d ] then mkdir /root/yum.repos.d fi cp -rf /etc/yum.repos.d/* /root/yum.repos.d rm -rf /etc/yum.repos.d/* ali_yum() { wget -O /etc/yum.repos.d/aliyun.repo http://mirrors.aliyum.com/repo/Centos-7.repo yum clean all yum makecache } wy_yum() { wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo yum clean all yum makecache } huawei_yum() { wget -O /etc/yum.repos.d/huaweicloud.repo https://repo.huaweicloud.com/repository/conf/CentOS-7-reg.repo yum clean all yum makecachecd } re_yum() { cp -rf /root/yum.repos.d/* /etc/yum.repos.d rm -rf /root/yum.repos.d/* yum clean all yum makecache } echo "YUM源有:ali wy huawei re" read -p "请输入一个yum源并按Enter键确认：" YUM case "$YUM" in ali) echo "你选择的是阿里云yum源,将开始为你配置" ali_yum ;; wy) echo "你选择的是网易yum源,将开始为你配置" wy_yum ;; huawei) echo "你选择的是阿里云yum源,将开始为你配置" huawei_yum ;; re) echo "你选择的是初始源,将开始为你配置" re_yum ;; *) echo "你输入的是其他选择，现在只能选择这些" esac yum install -y httpd &> /dev/null if [ $? -eq 0 ] then echo "配置完成" fi

讯享网#/bin/bash #function:却换源 #author:tommypeng  wget=$(rpm -qa |grep wget) if [ $? -eq 0 ] then echo "软件包wgat已安装即将进入下一步" else yum install wget -y echo "即将安装wget软件包" fi read -p "请输入需要却换的yum源的序号,如1.本地源、2.阿里云镜像源、3.163镜像源、4.华为镜像源:" qh case "$qh" in 1) echo "您选择的是本地源,即将开始切换." #创建本地源文件夹 mkdir /mnt/ncw #指定挂载镜像目录 mount /dev/cdrom /mnt/ncw #检测是否挂载成功 if [ $? -eq 0 ];then echo "挂载成功,即将进入下一步" else echo "挂载失败,请检查是否已挂载或路径错误" fi #备份原本地源 cp -rf /etc/yum.repos.d /etc/yum.repos.d_$(date '+%Y%m%d_%H%M%S') #进入yum目录删除默认原本地源 rm -f /etc/yum.repo.d/* #创建local.repo文件 touch local.repo echo "[local]" > /etc/yum.repos.d/local.repo echo "name=local" >> /etc/yum.repos.d/local.repo echo "baseurl=file:///mnt/ncw" >> /etc/yum.repos.d/local.repo echo "gpgcheck=0" >> /etc/yum.repos.d/local.repo echo "enabled=1" >> /etc/yum.repos.d/local.repo #更新yum配置 yum clean all yum makecache ;; 2) echo "您选择的是阿里云镜像源,即将开始切换." #切换到yum的安装目录 cd /etc/yum.repos.d/ #备份原文件 cp -rf /etc/yum.repos.d /etc/yum.repos.d_$(date '+%Y%m%d_%H%M%S') #下载阿里云镜像源 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo #清理yum的已有缓存 yum clean all #生产yum的缓存 yum makecache ;; 3) echo "您选择的是163网易镜像源，即将开始切换" #备份原文件 cp -rf /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo_$(date '+%Y%m%d_%H%M%S') #下载163镜像源 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo #清理yum的已有缓存 yum clean all #生产yum的缓存 yum makecache ;; 4) echo "您选择的是华为镜像源，即将开始切换" #备份原文件 cp -rf /etc/yum.repos.d /etc/yum.repos.d_$(date '+%Y%m%d_%H%M%S') #下载华为镜像源 wget -O /etc/yum.repos.d/CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-7-reg.repo #清理yum的已有缓存 yum clean all #生产yum的缓存 yum makecache ;; *) echo "请输入正确的序列号" esac 

讯享网

#!/bin/bash #yum install -y "wget" >> /dev/null cd /etc/yum.repos.d rm -rf /etc/yum.repos.d/* read -p "请输入要安装的yum源（ali|163|huawei|re|qhdx）:" Y case "$Y" in ali) cd /etc/yum.repos.d rm -rf /etc/yum.repos.d/* echo "正在安装yum阿里云" wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo &> /dev/null if [ $? -eq 0 ];then echo "yum阿里云已安装完成" else echo "yum阿里云安装失败" fi yum clean all &> /dev/null if [ $? -eq 0 ];then echo "yum缓存已清除" else echo "yum缓存清除失败" fi yum makecache &> /dev/null if [ $? -eq 0 ];then echo "yum已更新" else echo "yum更新失败" fi ;; huawei) cd /etc/yum.repos.d rm -rf /etc/yum.repos.d/* wget -O /etc/yum.repos.d/CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-8-reg.repo echo "正在切换华为云yum源" if [ $? -eq 0 ];then echo "华为云yum源已安装完成" else echo "华为云yum源安装失败" fi yum clean all &> /dev/null if [ $? -eq 0 ];then echo "yum缓存已清除" else echo "yum缓存清除失败" fi yum makecache &> /dev/null if [ $? -eq 0 ];then echo "yum已更新" else echo "yum更新失败" fi ;; 163) cd /etc/yum.repos.d rm -rf /etc/yum.repos.d/* wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo if [ $? -eq 0 ];then echo "163yum源已安装完成" else echo "163yum源安装失败" fi yum clean all &> /dev/null if [ $? -eq 0 ];then echo "yum缓存已清除" else echo "yum缓存清除失败" fi yum makecache &> /dev/null if [ $? -eq 0 ];then echo "yum已更新" else echo "yum更新失败" fi ;; re) cd /etc/yum.repos.d rm -rf /etc/yum.repos.d/* touch local.repo cat >> /etc/yum.repos.d/local.repo << EOF [local] name=zwz baseurl=file:///mnt enabled=1 gpgcheck=0 EOF umount /dev/cdrom mount /dev/cdrom /mnt yum clean all &> /dev/null if [ $? -eq 0 ];then echo "yum缓存已清除" else echo "yum缓存清除失败" fi yum makecache &> /dev/null if [ $? -eq 0 ];then echo "yum已更新" else echo "yum更新失败" fi ;; qhdx) wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/centos/docker-ce.repo --no-check-certificate if [ $? -eq 0 ];then echo "qhdxyum源已安装完成" else echo "qhdxyum源安装失败" fi yum clean all &> /dev/null if [ $? -eq 0 ];then echo "yum缓存已清除" else echo "yum缓存清除失败" fi yum makecache &> /dev/null if [ $? -eq 0 ];then echo "yum已更新" else echo "yum更新失败" fi ;; *) echo "用法： 脚本(./yum.sh)+{ali|huawei|163|re|qhdx}" echo "ali (阿里云yum源) | huawei(华为云yum源) | 163(网易yum源) | re(本地yum源) | qhdx(清华大学yum源))" esac

讯享网#!/bin/bash echo "备份本地yum源，第一次执行备份，之后请选择no否则会出现问题" echo "1为 YES" echo "2为 NO" until [[ "$choice" =~ ^[1-2]$ ]] do echo "请选择 1 or 2" read -rp "choice [1-2]:" -e choice done if [ "$choice" == 1 ] then mkdir /etc/tomgoud cp /etc/yum.repos.d/* /etc/tomgoud/ echo "备份成功，如果本次不是第一次，那么去/etc/tomgoud中多出的文件删除！！！" else echo "退出备份，如果本次是部署第一次，如果是那么退出脚本，重新备份！！！" fi ping -c 2 www.baidu.com if [ $? = 0 ] then echo "外网连接成功" else echo "外网连接失败，将退出脚本" exit fi wyyum() { rm -rvf /etc/yum.repos.d/* wget http://mirrors.163.com/.help/CentOS7-Base-163.repo yum clean all yum makecache yum repolist } alyum() { rm -rvf /etc/yum.repos.d/* wget http://mirrors.aliyun.com/repo/Centos-7.repo yum clean all yum makecache yum repolist } bdiyum() { rm -rvf /etc/yum.repos.d/* cp /etc/tomgoud/* /etc/yum.repos.d/ yum clean all yum makecache yum repolist } read -p "选择安装yum源 1：网易 2：阿里 3：本地:" qwe case "$qwe" in 1) wyyum ;; 2) alyum ;; 3) bdiyum ;; esac if [ $? = 0 ] then echo "安装完成" else echo "安装失败" fi