From: Alex Fenton <alex@...>
Date: 2009-03-21T00:12:14+09:00
Subject: Re: Installing Ruby and Ruby Gems in a USB Flash Stick

Ruby Student wrote:

> Had anyone installed Ruby in a USB Flash Stick?

...


>    1. When I run it from a machine that already has ruby installed, I don't
>    know from where ruby is running.
>    2. When I try to install any gem, it actuall go to the C-Drive instead of
>    my USB stick. I noticed that you can tell gem where to install gems, but it
>    is not clear to me.

You should look into setting a PATH environment variable to tell the 
system you're working on to look for the 'ruby' and 'gem' executables on 
the USB stick, rather than on C:/ etc. Have a look at:

http://www.google.co.uk/search?q=path+environment

alex