From: Robert Klemme <shortcutter@...>
Date: 2013-01-12T00:03:16+09:00
Subject: Re: How Ruby environment varibles work in realtime program?

On Fri, Jan 11, 2013 at 3:54 PM, Joel Pearson <lists@ruby-forum.com> wrote:
> Oops, forgot the dollar signs. FYI that's a single line of code, it gets
> put onto 2 lines by a line character limit on the forum.
>
> [$DLN_LIBRARY_PATH, $HOME, $LOGDIR, $RUBYOPT, $RUBYSHELL].each {|var|
> puts var }
>
> When I run that in IRB they all come out as nil, presumably because in
> that environment they aren't set.

These are global variables and not environment variables!  Please see
Jeremy's reply for how to access environment variables.

Kind regards

robert

-- 
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