Install Node.js 5.x on Ubuntu and Debian using PPA

Node.js is a Javascript platform for server-side programming. It allows users to easily create networked applications that require backend functionality. It is used to develop I/O intensive web applications like video streaming sites, single-page applications, and other web applications. Node.js is open source, completely free, and used by thousands of developers around the world.

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This tutorial will help you to install node.js on Ubuntu and Debain systems with an example application.

Step #1 Install Optional Packages

Run the following command to install all optional packages If required:

# apt-get install -y build-essential

Now install screen package in your system using following commands.

# yum install screen

Step #2 Add Node.js PPA

Run the following command to add Node.js repository in Ubuntu and Debain system.

# curl -sL https://deb.nodesource.com/setup_5.x | sudo -E bash -

Step #3 Install Node.js

After adding Node.js repository, run the below command to install node.js

# sudo apt-get install -y nodejs

Step #4 Check Node.js Version

Run following command to check the node.js version.

# node --version

v5.8.0

Step #5 Configure Example Application using Express

First we required to install npm modules using following commands.

# npm -g install express supervisor express-generator

This time is to create application using express and npm using below set of commands.

# express technical
# cd technical
# npm install 
# screen

The above commands will create a directory myapp and npm will install all the required modules to run your application from its software repository.

Now edit views/index.jade and add following content to show on default page.

# vim views/index.jade

extends layout

block content
  h1= title
  p Welcome to Technical World (Ubuntu)

Finally start your application using supervisor.

# supervisor ./bin/www

This application by default start on port 3000. Access your application by connecting your server on port 3000 in your browser.

http://Server_IP:3000/

Reference:
https://nodejs.org/en/download/package-manager/

Enjoy it!