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.repo
wget -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.repo
wget -O /etc/yum.repos.d/aliyun-epel6.repo http://mirrors.aliyun.com/repo/epel-6.repo
CentOS 7
wget -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