**Course Title:** Ruby Programming: From Basics to Advanced Techniques **Section Title:** Introduction to Ruby and Setup **Topic:** Install Ruby and create a simple Ruby script.(Lab topic) **Objective:** In this lab topic, you will install Ruby on your computer and create a simple Ruby script. This hands-on experience will help you understand the basics of Ruby programming and set the stage for more advanced topics. By the end of this topic, you will be able to: * Install Ruby on your computer using RubyInstaller, RVM, or rbenv * Create a simple Ruby script using a text editor * Run the Ruby script and see the output **Step 1: Install Ruby** If you haven't already installed Ruby on your computer, follow these steps: * **Using RubyInstaller (Windows):** 1. Go to the RubyInstaller download page: [https://rubyinstaller.org/downloads/](https://rubyinstaller.org/downloads/) 2. Click on the "Download" button for the latest version of RubyInstaller 3. Run the installer and follow the prompts to install Ruby 4. Add Ruby to your system's PATH environment variable * **Using RVM (Ruby Version Manager) (Mac or Linux):** 1. Install RVM by running the command: `\curl -sSL https://get.rvm.io | bash -s stable` 2. Run the command: `rvm install ruby` 3. Run the command: `rvm use ruby` * **Using rbenv (Mac or Linux):** 1. Install rbenv by running the command: `brew install rbenv` (if you're using Homebrew on Mac) or `sudo apt-get install rbenv` (if you're using Ubuntu Linux) 2. Run the command: `rbenv install ruby` 3. Run the command: `rbenv global ruby` **Step 2: Create a Simple Ruby Script** Once you have Ruby installed, create a simple Ruby script using a text editor: * Open a text editor such as Notepad (Windows), TextEdit (Mac), or Gedit (Linux) * Create a new file and save it with a `.rb` extension, for example, `hello.rb` * In the file, write the following code: `puts "Hello, World!"` * Save the file **Step 3: Run the Ruby Script** Run the Ruby script by following these steps: * Open a terminal or command prompt * Navigate to the directory where you saved the `hello.rb` file * Type the command: `ruby hello.rb` and press Enter * You should see the output: `Hello, World!` **Key Concepts:** * Installing Ruby using RubyInstaller, RVM, or rbenv * Creating a simple Ruby script using a text editor * Running a Ruby script using the `ruby` command **Practical Takeaways:** * You now have Ruby installed on your computer and can create simple Ruby scripts * You can run Ruby scripts using the `ruby` command * You can use a text editor to write and edit Ruby code **What's Next:** In the next topic, we will cover conditional statements: `if`, `else`, `unless`, and `case`. You will learn how to control the flow of your Ruby programs using these statements. **Leave a Comment or Ask for Help:** If you have any questions or need help with installing Ruby or creating a simple Ruby script, leave a comment below. I'll be happy to assist you.