新建一个update.sh的文件

复制代码进去，保存并退出（Esc—>shift+zz）

#! /usr/bin/bash
echo  "---------------------update sources is begin-----------------------"

log_file="#aliyun 阿里云 \n
deb http://mirrors.aliyun.com/kali kali-rolling main non-free contrib \n
deb-src http://mirrors.aliyun.com/kali kali-rolling main non-free contrib \n

# ustc 中科大 \n
deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib \n
#deb-src http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib \n
#deb http://mirrors.ustc.edu.cn/kali-security kali-current/updates main contrib non-free \n
#deb-src http://mirrors.ustc.edu.cn/kali-security kali-current/updates main contrib non-free"
echo -e $log_file>>sources.list
echo  "---------------------update sources is end-----------------------"
echo  "---------------------update system is begin-----------------------"
apt-get update
apt-get upgrade
apt-get dist-upgrade
apt-get clean
apt-get autoclean
echo  "---------------------update system is end-----------------------"

使用方式：
进入到文件所在的文件夹，执行以下命令

chmod a+x update.sh
./update.sh

然后坐等完成即可。

注：第一次使用过后要删除更新源的部分（自用）