##这个完全重写，不是追加
cat << EOF > /etc/apt/sources.list
deb http://http.kali.org/kali kali-rolling main non-free contrib
EOF
apt-get update
apt-get dist-upgrade # get a coffee, or 10.
reboot
建议国内源比较快一些
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
deb http://mirrors.ustc.edu.cn/kali-security kali-rolling/updates main contrib non-free
https://www.kali.org/news/kali-linux-rolling-edition-2016-1/
[教程] kali-2.0升级2016.1过程
