How To Activate Ruby

In this blog post, we will learn how to activate Ruby on your system, and get started with this powerful and flexible programming language. Whether you’re a beginner to programming or a seasoned developer looking to add Ruby to your skillset, this guide will help you get started quickly and efficiently.

Step 1: Install Ruby

First, you need to install Ruby on your system. There are different ways to install Ruby, depending on your operating system:

  • Windows: Download and install the RubyInstaller from
  • macOS: You can use Homebrew to install Ruby. If you don’t have Homebrew, you can install it by following the instructions at Then, open a terminal and run brew install ruby.
  • Linux: Use your package manager to install Ruby. For example, on Ubuntu or Debian-based systems, open a terminal and run sudo apt-get install ruby-full.

For more information on installing Ruby, visit the official Ruby website at

Step 2: Verify Ruby Installation

Once you have installed Ruby, open a terminal (Command Prompt on Windows) and run the following command to check the Ruby version:

ruby -v

You should see the Ruby version number displayed, something like this:

ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x86_64-darwin19]

If you see the Ruby version number, congratulations! Ruby is successfully installed on your system.

Step 3: Write Your First Ruby Program

Now that Ruby is installed, let’s write a simple Ruby program to print “Hello, World!” to the console:

Create a new file called hello_world.rb using your favorite text editor, and add the following line of code:

puts "Hello, World!"

Save the file and close your text editor.

Step 4: Run Your Ruby Program

Open a terminal, navigate to the directory where you saved the hello_world.rb file, and run the following command:

ruby hello_world.rb

You should see the “Hello, World!” message printed on the console:

Hello, World!

Congratulations! You have just written and executed your first Ruby program.

Next Steps

Now that you have successfully activated Ruby on your system and written a simple program, it’s time to dive deeper and learn more about this powerful programming language. There are many resources available online to help you learn Ruby, including tutorials, courses, and documentation. Here are a few resources to get you started:

Good luck on your Ruby programming journey!