Are you pointing to the ruby directory or the executable, you need to 
point to the ruby executable?
Should it maybe be:
#!/Users/peterbailey/.rbenv/shims/ruby/bin/ruby


>From:  tamouse pontiki <tamouse.lists / gmail.com>
>To:    ruby-talk ML <ruby-talk / ruby-lang.org>
>Date:  12/18/2013 01:06 AM
>Subject:       Re: simple, simple stuff
>Sent by:       "ruby-talk" <ruby-talk-bounces / ruby-lang.org>
>
>
>On Tue, Dec 17, 2013 at 12:58 PM, Peter Bailey <lists / ruby-forum.com> 
wrote:
>tamouse m. wrote in post #1130882:
>> On Tue, Dec 17, 2013 at 11:22 AM, Peter Bailey <lists / ruby-forum.com>
>> wrote:
>>
>>> >> What is it complaining about "require?" Yeh, I've got "require" 
there at
>>> > Mac):
>>>
>>>
>>> Thanks, Jesus. I checked my script and I do have the shebang there.
>>> Thanks, anyway.
>>>
>>> --
>>> Posted via http://www.ruby-forum.com/.
>>>
>>
>> It might help if you pasted the script.
>
>Uh, it's pretty big. But, here it is. Thanks.
>
>
>Thanks -- it's not *that* long, but I guess I could have asked for the 
head of the file instead... :))
> 
>#/Users/peterbailey/.rbenv/shims/ruby
>
>It should be:
>
>#!/Users/peterbailey/.rbenv/shims/ruby
>
>if you actually do have a shim for ruby at that exact path. Type that at 
the Terminal prompt to see.
>
>This is what I use to start scripts:
>
>#!/usr/bin/env ruby
>
>and it picks up which ruby to run based upon the user's environment, 
which defaults to the system ruby.
>