Node.js install version 4.x and 5.x

Node.js download Link : https://nodejs.org/en/download/package-manager/

Using package manager (My case is Ubuntu, apt-get)

Nodejs.org site page below.

Debian and Ubuntu based Linux distributions

Also including: 

Linux Mint, Linux Mint Debian Edition (LMDE), elementaryOS and others.

Node.js is available from the NodeSource Debian and Ubuntu binary distributions repository (formerly Chris Lea'sLaunchpad PPA). 

Support for this repository, along with its scripts, can be found on GitHub at nodesource/distributions.

NOTE: If you are using Ubuntu Precise or Debian Wheezy, you might want to read about

running Node.js >= 4.x on older distros.

curl -sL https://deb.nodesource.com/setup_4.x | sudo -E bash -
sudo apt-get install -y nodejs

Alternatively, for Node.js v5:

curl -sL https://deb.nodesource.com/setup_5.x | sudo -E bash -
sudo apt-get install -y nodejs

Optional: install build tools

To compile and install native addons from npm you may also need to install build tools:

sudo apt-get install -y build-essential