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Joseph Hall10,865 Points
How to install ruby and Rails 4 on MAC OS Mavericks
Ethan LowryCourses Plus Student 7,323 Points
Sure thing Joseph.
First of all, you'll want to get RVM. RVM allows you to easily install, manage and switch between multiple different versions of Ruby (or Ruby Gems) on your system. This is very useful when you need to make use of different versions for different projects.
I'd recommend reading through their installation guide, but the simple version is: run the following command from your command line and it will install RVM, Ruby and Rails in one go.
\curl -sSL https://get.rvm.io | bash -s stable --rails
If you require specific versions of Ruby or Rails, there are instructions in the RVM documentation for how to get these easily, or just comment here if you're stuck.