Kali Sources

kali.sh

cat >/etc/apt/sources.list.d/kali.list <<EOF 
deb http://http.kali.org/kali kali main contrib non-free
deb-src http://http.kali.org/kali kali main contrib non-free
deb http://security.kali.org/kali-security kali/updates main contrib non-free
deb-src http://security.kali.org/kali-security kali/updates main contrib non-free
EOF

sudo apt-key adv --keyserver pgp.mit.edu --recv-keys ED444FF07D8D0BF6
sudo apt-get update