【CentOS7】修改yum源
【CentOS7】修改yum源
转载：https://www.cnblogs.com/yangchongxing/p/10645944.html
1、备份源
# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
2、下载对应版本 repo 文件, 放入 /etc/yum.repos.d/
163
# CentOS7
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
# CentOS6
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS6-Base-163.repo
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS6-Base-163.repo
阿里 https://developer.aliyun.com/mirror/centos?spm=a2c6h.13651102.0.0.3e221b11otsGvO
# Centos-8
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo
# Centos-7
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
# Centos-6
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-6.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-6.repo
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
# 清理阿里内部源
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
3、清理
# yum clean all # yum makecache
4、yum 命令
yum [options] [command] [package ...]
options：可选，选项包括-h（帮助），-y（当安装过程提示选择全部为"yes"），-q（不显示安装的过程）等等。
command：要进行的操作。
package操作的对象。
1.列出所有可更新的软件清单命令：yum check-update
2.更新所有软件命令：yum update
3.仅安装指定的软件命令：yum install <package_name>
4.仅更新指定的软件命令：yum update <package_name>
5.列出所有可安裝的软件清单命令：yum list
6.删除软件包命令：yum remove <package_name>
7.查找软件包 命令：yum search <keyword>
8.清除缓存命令:
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
