cd ~ curl -sL https://deb.nodesource.com/setup_12.x -o nodesource_setup.sh sudo bash nodesource_setup.sh sudo apt install nodejs nodejs -v # shows your version
nvm install 12.18.3
sudo bash nodesource_setup.sh
bash install_nvm.sh
cd ~ curl -sL https://deb.nodesource.com/setup_10.x -o nodesource_setup.sh