nvm setup ubuntu 18.04 code example

Example 1: install npm ubuntu

sudo apt update
sudo apt install nodejs
sudo apt install npm

Example 2: ubuntu 18 install nodejs

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