Ubuntu 16.04: Install NPM, Yarn and Gulp Frontend Tools

curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
sudo apt-get update && sudo apt-get install -y yarn nodejs
sudo npm install --global gulp-cli