Learn how to create a Ruby executable

If you have Ruby installed on your computer, we know that you can execute .rb files with the ruby .rb command. This is not what we are talking about in this article.This article is about executing ruby programs without typing ruby, ./, or an .rb extension and being able to execute the command from anywhere in your file system.Just like when you type gem, rails, or irb, and your console immediately recognizes and runs a program, we want to do this with our own custom-built Ruby file.