centos 7 更换yum源

liukaida

yum源调整为163
wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
[root@admin yum.repos.d]# mv CentOS-Base.repo CentOS-Base.repo.bak
[root@admin yum.repos.d]# mv CentOS7-Base-163.repo CentOS-Base.repo
运行以下命令生成缓存：
[root@admin yum.repos.d]#yum clean all
[root@admin yum.repos.d]#yum makecache
yum源调整为阿里云源
1、备份
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
2、下载新的CentOS-Base.repo 到/etc/yum.repos.d/
CentOS 5
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repoCentOS 6
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repoCentOS 7
wget -O /etc/yum.repos.d/CentOS-Base.repo
[root@admin yum.repos.d]#yum clean all
[root@admin yum.repos.d]#yum makecache
1 安装
yum install 全部安装
yum install package1 安装指定的安装包package1
yum groupinsall group1 安装程序组group1
2 更新和升级
yum update 全部更新
yum update package1 更新指定程序包package1
yum check-update 检查可更新的程序
yum upgrade package1 升级指定程序包package1
yum groupupdate group1 升级程序组group1
3 查找和显示
yum info package1 显示安装包信息package1
yum list 显示所有已经安装和可以安装的程序包
yum list package1 显示指定程序包安装情况package1
yum groupinfo group1 显示程序组group1信息yum search string 根据关键字string查找安装包
4 删除程序
yum remove | erase package1 删除程序包package1
yum groupremove group1 删除程序组group1
yum deplist package1 查看程序package1依赖情况
5 清除缓存
yum clean packages 清除缓存目录下的软件包
yum clean headers 清除缓存目录下的 headers
yum clean oldheaders 清除缓存目录下旧的 headers
yum clean, yum clean all (= yum clean packages; yum clean oldheaders) 清除缓存目录下的软件包及旧的headers