kali修改更新源

1、修改sources.list源文件：

vim /etc/apt/sources.list

#aliyun 阿里云
deb http://mirrors.aliyun.com/kali kali-rolling main non-free contrib
deb-src http://mirrors.aliyun.com/kali kali-rolling main non-free contrib

#中科大源
deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib

#官方源
deb http://http.kali.org/kali kali-rolling main non-free contrib
deb-src http://http.kali.org/kali kali-rolling main non-free contrib

2、常用更新命令：

apt update    # 检测可更新的软件
apt upgrade    # 自动更新并安装软件
apt dist-upgrade    # 检测并进行系统升级

3、清理安装包：

apt-get clean    #删除所有已下载的包文件
apt-get autoclean    #删除已下载的旧包文件
apt-get autoremove    #卸载所有自动安装且不再使用的软件包