目录

#为什么用
#包的管理
#源的管理

为什么用

a free and open-source command-line package-management utility for computers running the Linux operating system using the RPM Package Manager.

包的管理

//yum [options] [command] [package ...]
//安装某包
yum install <package_name>

//可安装包
yum list
//需更新包
yum check-update

//更新所有
yum update
//更新某包
yum update <package_name>

//删除某包
yum remove <package_name>

//查找某包
yum search <keyword>

//清除缓存
yum clean

源的管理

/*****用国内源******/
//step-01:备份旧源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
//step-02:下载新源
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
mv CentOS6-Base-163.repo CentOS-Base.repo
//step-03:生成缓存
yum clean all
yum makecache