The command line
Comes pre-installed on all operating systems!
|Operating System||Command line program|
Set up a desktop shortcut for your command line now!
Visual Studio Code
Don't worry, it's free and open source!
Set up a desktop shortcut for Visual Studio Code now!
Congratulations! There is nothing to be done. Ruby comes pre-installed!
You probably know how to install packages on your distribution.
For example on Ubuntu, run in the command line:
sudo apt install ruby-full
Check that your Ruby installation works:
You should see something similar to this:
ruby 2.6.1p33 (2019-01-30 revision 66950) [x86_64-darwin18]
What questions do you have?