Install nodejs and npm on Ubuntu 14.04

gistfile1.txt

# Install packages to allow Node to be installed
sudo apt-get update
sudo apt-get install software-properties-common
sudo apt-get install apt-transport-https

# Install Node
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 68576280
# change /node_6.x to whatever release version of node you would like (e.g. node_5.x)
sudo apt-add-repository "deb https://deb.nodesource.com/node_6.x $(lsb_release -sc) main"

# Update again for the latest packages
sudo apt-get update

# Install Node
sudo apt-get install nodejs