centos更新源
首先备份/etc/yum.repos.d/CentOS-Base.repomv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
进入yum源配置文件所在文件夹# cd /etc/yum.repos.d/
下载163的yum源配置文件,放入/etc/yum.repos.d/(操作前请做好相应备份)# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
(CentOS 5wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo
CentOS 6wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
CentOS 7wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo)
运行yum makecache生成缓存# yum makecache
更新系统# yum -y update
安装vim编辑器# yum -y install vim*
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