curl -s https://brave-browser-apt-release.s3.brave.com/brave-core.asc | sudo apt-key --keyring /etc/apt/trusted.gpg.d/brave-browser-release.gpg add
source /etc/os-release
echo "deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stretch main" | sudo tee /etc/apt/sources.list.d/brave-browser-release-${Continunn}.list
sudo apt update
sudo apt install brave-keyring brave-browser
ref : https://brave-browser.readthedocs.io/en/latest/installing-brave.html#linux