Debian GNU/Linux ，是一个操作系统及自由软件的发行版，由一群自愿付出时间和精力的用户来维护并更新。
它附带了超过59000个软件包，这些预先编译好的软件被打包成一种良好的格式以便于用户安装和使用。
在配置debian的镜像源之前，请确保你当前登录的用户具有sudo权限或者以root用户登录。
我们已经把替换镜像源做成脚本，你不必了解任何编辑器，例如vim可能会让人找不到方向的编辑器，你只需要复制然后粘贴到终端运行即可一键换镜像源。
我们的脚本将会一键替换/etc/apt/sources.list文件，并刷新软件源。这里涵盖了Debian现在主流的发行版的镜像。请根据自己的发行版复制命令。
debian 7
sudo bash -c "cat << EOF > /etc/apt/sources.list && apt update
deb http://mirrors.aliyun.com/debian-archive/debian/ wheezy main non-free contrib
deb http://mirrors.aliyun.com/debian-archive/debian/ wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian-archive/debian/ wheezy main non-free contrib
deb-src http://mirrors.aliyun.com/debian-archive/debian/ wheezy-proposed-updates main non-free contrib
EOF"debian 8
sudo bash -c "cat << EOF > /etc/apt/sources.list && apt update
deb http://mirrors.aliyun.com/debian/ jessie main non-free contrib
deb http://mirrors.aliyun.com/debian/ jessie-proposed-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ jessie main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ jessie-proposed-updates main non-free contrib
EOF"debian 9
sudo bash -c "cat << EOF > /etc/apt/sources.list && apt update
deb http://mirrors.aliyun.com/debian/ stretch main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ stretch main non-free contrib
deb http://mirrors.aliyun.com/debian-security stretch/updates main
deb-src http://mirrors.aliyun.com/debian-security stretch/updates main
deb http://mirrors.aliyun.com/debian/ stretch-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ stretch-updates main non-free contrib
#deb http://mirrors.aliyun.com/debian/ stretch-backports main non-free contrib
#deb-src http://mirrors.aliyun.com/debian/ stretch-backports main non-free contrib
EOF"debian 10
sudo bash -c "cat << EOF > /etc/apt/sources.list && apt update
deb http://mirrors.aliyun.com/debian/ buster main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ buster main non-free contrib
deb http://mirrors.aliyun.com/debian-security buster/updates main
deb-src http://mirrors.aliyun.com/debian-security buster/updates main
deb http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib
deb http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib
EOF"debian 11
sudo bash -c "cat << EOF > /etc/apt/sources.list && apt update
deb http://mirrors.aliyun.com/debian/ bullseye main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ bullseye main non-free contrib
deb http://mirrors.aliyun.com/debian-security/ bullseye-security main
deb-src http://mirrors.aliyun.com/debian-security/ bullseye-security main
deb http://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib
deb http://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib
EOF"