From: Ammar Ali <ammarabuali@...>
Date: 2010-11-11T15:12:40+09:00
Subject: Re: [quite ot] scripting an rvm command

On Thu, Nov 11, 2010 at 7:48 AM, botp <botpena@gmail.com> wrote:
> Hi All,
>
> sorry for this dumb question, but i'm getting zero iq as of this moment :)
>
> i cannot seem to run properly an rvm command inside a script file. my
> objective is to run a ruby script on all rvm versions installed.
>
> eg, the ff runs fine when run thru the cli,
>
>   for i in `rvm list strings`; do rvm use "$i"; ruby -v;  done
>
> but when the above code is placed inside a script file, and then the
> script is run,  you wont get the expected output. You just the same
> ruby -v result on all rvm ruby versions, as if rvm use command was
> ignored..

I just noticed your update, so I deleted more than half my response.
But I wanted to mention that in addition to the ways outlined on that
page, I find that wrapping version changes inside a bash function
works well and is quite handy. Here's one example from a recent
project:

  https://gist.github.com/672097

Then in the console, running ./multispec.sh does the job nicely.

Regards,
Ammar