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Ruby on Rails, often simply Rails, is a popular web application framework written in the Ruby language. It provides developers with a structured approach to building web applications based on the model-view-controller (MVC) architecture. Due to its efficiency and ease of use, Rails has gained immense popularity among developers worldwide. In this article, we'll explore how you can install Ruby on Rails on the Ubuntu operating system.

Prerequisites

Before getting started, ensure that you have Ruby installed on your Ubuntu system. Rails is a Ruby gem, which means you need to have Ruby installed to run it. If you haven't installed Ruby yet, you can follow these steps.

Installing Ruby

1. Update Your System

   First, open a terminal and enter the following command to update the package list and installed programs:

   sudo apt-get update && sudo apt-get upgrade
   

2. Install Ruby

   To install Ruby, use the apt package manager:

   sudo apt-get install ruby-full
   

   Once the installation is complete, you can verify the Ruby version by typing:

   ruby -v
   

 

Installing Rails

With Ruby installed, you can proceed to install Rails.

1. Install Node.js and Yarn

   Rails requires a JavaScript Runtime for managing its dependencies. Install Node.js and Yarn with the following commands:

   sudo apt-get install nodejs
   sudo npm install --global yarn
   

2. Install Rails

   Install Rails using the gem command:

   gem install rails
   

   After the installation completes, verify the Rails version by typing:

   rails -v
   

 

Creating Your First Application

Now that you have Rails installed, you can create your first application. Open a terminal and enter the following command:

rails new my_first_rails_app

This command will create a new directory named my_first_rails_app with the default Rails application structure. To run your application, navigate into the newly created directory and start the server:

cd my_first_rails_app
rails server

You can now view your application in your web browser by accessing http://localhost:3000.

 

Installing Ruby on Rails on Ubuntu is a straightforward process that involves installing Ruby, Node.js, and Rails itself. After installation, you can easily create and run web applications. Ruby on Rails provides developers with a powerful tool for rapid application development with clean and maintainable code.