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根据自己的系统版本选择复制粘贴执行即可
# 163yum源：(Centos5、6、7版本)
cd /etc/yum.repos.d/
wget http://mirrors.163.com/.help/CentOS5-Base-163.repo
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
# 阿里云yum源(Centos5、6、7版本)
CentOS 5
wget -O /etc/yum.repos.d/aliyun-CentOS5-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repowget -O /etc/yum.repos.d/aliyun-epel5.repo http://mirrors.aliyun.com/repo/epel-5.repo
CentOS 6
wget -O /etc/yum.repos.d/aliyun-CentOS6-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repowget -O /etc/yum.repos.d/aliyun-epel6.repo http://mirrors.aliyun.com/repo/epel-6.repo
CentOS 7wget -O /etc/yum.repos.d/aliyun-CentOS7-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
wget -O /etc/yum.repos.d/aliyun-epel7.repo http://mirrors.aliyun.com/repo/epel-7.repo
#清除缓存，生成本地缓存，下次安装速度快
yum clean all && yum makecache
ubuntu各版本更换apt源
mv /etc/apt/sources.list /etc/apt/sources.list.bak
# 更改阿里源
首先备份本地的源
cp /etc/apt/sources.list /etc/apt/sources.list.bak-`date +%F`
#修改文件 删除原有内容，添加下面内容
vim /etc/apt/sources.list
#Ubuntu 14.04.5 LTS
deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
#Ubuntu 16.04 LTS
deb http://mirrors.aliyun.com/ubuntu/ xenial main
deb-src http://mirrors.aliyun.com/ubuntu/ xenial main
deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main
deb http://mirrors.aliyun.com/ubuntu/ xenial universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial universe
deb http://mirrors.aliyun.com/ubuntu/ xenial-updates universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates universe
deb http://mirrors.aliyun.com/ubuntu/ xenial-security main
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main
deb http://mirrors.aliyun.com/ubuntu/ xenial-security universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security universe
#Ubuntu 18.04 LTS (bionic)
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
# 更新apt源，读取新apt源到本地
apt updata
# 更新本地所有软件包 apt upgrade
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