How to run Ruby programs in MAC OS Terminal

Question

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How to run ruby files?

I am starting to learn Ruby and having a hard time running the Ruby classes in the Terminal.

I created a class in the Sublime Text editor, just "hello world". I can compile using ruby hello.rb, but how do I execute it?

I went to the terminal in my root directory and typed rails c which gave me a console. Could some one please tell me how to create an instance? Which console do I use?

Solution 1

Ruby is interpreted, so you don't need to worry about a separate compile step. ruby hello.rb is the execution command.

The standard interactive shell (REPL) is irb.

Solution 2

I think, this is very simple task. Paste in terminal ruby <your script name>.rb

This is all. Ruby is interpreted lang. Compiler doesn`t exist at all. Only interpreter. I use Ruby only few times, but I think, you must run your method hello. Your code only create the class and nothing else. You should firstly learn Ruby and then RoR.