From: Eleanor McHugh <eleanor@...>
Date: 2009-04-08T20:27:25+09:00
Subject: Re: How to find Operating system

On 8 Apr 2009, at 11:53, Ben Lovell wrote:
> You can reach into the ENV object for a whole load of information  
> about your
> current execution environment:
>
> ENV.to_hash.each do |key, value|
>    puts("#{key} - #{value}")
> end

Or you can use rbconfig:

   require 'rbconfig'
   case Config::CONFIG['host_os']
   when /darwin/i
     puts "Ah, Darwin :)"
   when /mswin|windows/i
     raise "You call that an operating system?"
   else
     raise "I haven't the foggiest"
   end

However be aware that if you're using JRuby it will still report the  
underlying OS which might not be as informative as you'd like so  
you'll also need to check other CONFIG options.


Ellie

Eleanor McHugh
Games With Brains
http://slides.games-with-brains.net
----
raise ArgumentError unless @reality.responds_to? :reason