How to open ruby interpreter in mac terminal

Open Interactive Ruby

Open up IRB (which stands for Interactive Ruby).

• If you’re using macOS open up Terminal and type irb, then hit enter.

• If you’re using Linux, open up a shell and type irb and hit enter.

• If you’re using Windows, open Interactive Ruby from the Ruby section of your Start Menu.

Open Interactive Ruby in macOS:

With the help of irb command you can open up Interactive Ruby in other platforms