Installing Ruby on Ubuntu

Ubuntu is the official OS for this course. These are the suggested ways that you can run Ubuntu:

• Install Ubuntu in your computer (natively or using a virtual machine).
• Use the Cloud 9 development environment. You only need a web browser.
• Install the Windows Subsystem for Linux.

Installation

Verify if Ruby is already installed in your system. At the terminal type:

ruby -v

If the output is “ruby 2.4.0” or better you’re good to go, so you can skip the following instructions. Otherwise, install Ruby 2.4. At the terminal type:

sudo add-apt-repository ppa:brightbox/ruby-ng

sudo apt-get update

sudo apt-get install ruby2.4 ruby2.4-dev