From: Todd Benson <caduceass@...>
Date: 2008-09-25T05:16:10+09:00
Subject: Re: Strange ruby problem

On Wed, Sep 24, 2008 at 1:29 PM, Robert Klemme
<shortcutter@googlemail.com> wrote:
>
> As others have said: arguments are the problem.  "gets" tries to read from
> ARGF which is basically all ARGV values interpreted as files and
> concatenated as streams.  You typically use this for poor man's cat:
>
> ruby -e 'ARGF.each {|line| puts line}' foo bar baz
>
> You can avoid the issue by doing
>
> num = ARGV.shift
> num2 = ARGV.shift
> puts num, num2
> line = gets
>
> Cheers
>
>        robert

As robert says.

I ran into this just the other day.  ARGV has to be clear (empty), for
stdin to work for gets.  (Pickaxe 2nd Ed., p. 180)

Todd