Install node and npm

# Update list of available packages
$ sudo apt-get update

# Install a special package
$ sudo apt-get install -y python-software-properties python g++ make

# Add a new repository for apt-get to search
$ sudo add-apt-repository ppa:chris-lea/node.js

# Update apt-get’s knowledge of which packages are where
$ sudo apt-get update

# Now install nodejs and npm
$ sudo apt-get install -y nodejs


# Check node and npm are installed
$ npm --version
1.2.32
$ node --version
v0.10.12