How to Install Oracle VirtualBox 6.0 on Kali Linux / Linux Mint

virtualbox.sh

#Update your system
sudo apt update
sudo apt -y upgrade
sudo reboot

#Import apt repository
wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -

#Add the VirtualBox Repository
#Mint
echo "deb [arch=amd64] http://download.virtualbox.org/virtualbox/debian bionic contrib" | sudo tee /etc/apt/sources.list.d/virtualbox.list

#Kali
echo "deb [arch=amd64] http://download.virtualbox.org/virtualbox/debian stretch contrib" | sudo tee /etc/apt/sources.list.d/virtualbox.list

# Install VirtualBox & Extension pack
sudo apt update
sudo apt install linux-headers-$(uname -r) dkms
sudo apt-get install virtualbox-6.0

#Download Extension Pack
cd ~/
wget https://download.virtualbox.org/virtualbox/6.0.0/Oracle_VM_VirtualBox_Extension_Pack-6.0.0.vbox-extpack

# install the extension pack by clicking on the Downloaded file

#Launching VirtualBox 6.0
virtualbox

didn't work

E: Unable to locate package deb
E: Package 'virtualbox' has no installation candidate