Thank you for the opportunity to help you with your question!
Hi Mr. Taluchan,
I have successfully Ruby. I have followed you instructions but it seems my Mac is missing many pre installed programs required to install Ruby. The problem is I don't have the preinstalled version of Ruby on my Mac so I am unable to install Homeberw because it needs Ruby to be preinstalled. So after my research I figured out that I can instead download Macports as an alternative for Homeberw to install Ruby and it worked. I have learned so many things from the installation of Ruby. I shall be thankful if you mail me the recorded video of yesterday's class.
Please let me know if you need any clarification for the doubts. I'm always happy to answer your questions. Looking forward to help you again. thank you. :)