ubuntu换源脚本

Ubuntu自动换源脚本
引用上文，此处引用方便自己使用

#!/bin/bash
#1.确定系统版本代号
Codename=$(cat /etc/os-release | grep VERSION_CODENAME |awk -F'=' '{print $2}')
echo "检测到您的Ubuntu系统版本为：$Codename"
#2.选择镜像源
echo "**********************************"
echo "请选择镜像源："
echo "
1.阿里
2.清华
3.网易
4.中科大
"
echo "**********************************"
read -s -n1 sourceChoice
if [ $sourceChoice -ne 1 ] && [ $sourceChoice -ne 2 ] && [ $sourceChoice -ne 3 ] && [ $sourceChoice -ne 4 ];then
echo
echo '输入有误，Good Bye.'
exit
fi
case $sourceChoice in
1)
choose='aliyun'
;;
2)
choose='tsinghua'
;;
3)
choose='163'
;;
4)
choose='ustc'
;;
esac
case $choose in
aliyun)
sourceweb='http://mirrors.aliyun.com'
;;
tsinghua)
sourceweb='https://mirrors.tuna.tsinghua.edu.cn'
;;
163)
sourceweb='http://mirrors.163.com'
;;
ustc)
sourceweb='http://mirrors.ustc.edu.cn'
;;
esac
# 3.备份换源
echo "备份sources.list..."
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
echo "设置新的镜像源..."
echo "
deb $sourceweb/ubuntu/ $Codename main restricted universe multiverse
deb $sourceweb/ubuntu/ $Codename-security main restricted universe multiverse
deb $sourceweb/ubuntu/ $Codename-updates main restricted universe multiverse
deb $sourceweb/ubuntu/ $Codename-proposed main restricted universe multiverse
deb $sourceweb/ubuntu/ $Codename-backports main restricted universe multiverse
deb-src $sourceweb/ubuntu/ $Codename main restricted universe multiverse
deb-src $sourceweb/ubuntu/ $Codename-security main restricted universe multiverse
deb-src $sourceweb/ubuntu/ $Codename-updates main restricted universe multiverse
deb-src $sourceweb/ubuntu/ $Codename-proposed main restricted universe multiverse
deb-src $sourceweb/ubuntu/ $Codename-backports main restricted universe multiverse">/etc/apt/sources.list
echo "更新源..."
sudo apt-get update

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