How to get Ruby / Homebrew / RVM to work on Yosemite?

Question

After installing Yosemite, I was unable to run brew or ruby.

I was getting this error on brew update:

/usr/local/bin/brew: /usr/local/Library/brew.r         


        

Answer 1

Steps to fix it:

1. Install command line tools for Xcode 6

2. Reinstall brew:

   ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
   

3. Once brew is installed, rvm will work:

   rvm install ruby
   

Worked for me, yahoo!