> On Feb 11, 2014, at 19:42, Tee Dubb <lists / ruby-forum.com> wrote:
> 
> mbp:~ teedubb$ brew update
> /usr/local/bin/brew: /usr/local/Library/brew.rb:
> /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad
> interpreter: No such file or directory
> /usr/local/bin/brew: line 21: /usr/local/Library/brew.rb: Undefined
> error: 0

The shebang is wrong. Do:

    ruby -S brew update

And it'll prolly even fix the shebangs.