From: Daniel Berger <djberg96@...>
Date: 2008-04-26T02:53:51+09:00
Subject: Re: determing what os is running



On Apr 25, 10:59 am, Kyle Hunter <keletmas...@gmail.com> wrote:
> cb wrote:
> > I need to execute commands differently based on the underlying
> > platform.  I don't need it down to the patch level or anything like
> > that -- just basic stuff.
>
> > How do I test whether I'm runnnig on Windows, Linux, or Mac?
>
> > Thanks in advance.
>
> > CB
>
> if RUBY_PLATFORM =~ /linux/ then
>   #Linux Stuff
> elsif RUBY_PLATFORM =~ /mswin32/ then
>   #Windows Stuff
> end

With other Ruby implementations out there this is no longer wise
because Sun and Microsoft have hija^H^H^H^H co-opted the term
'platform'. If you check RUBY_PLATFORM with JRuby, for example, you'll
get 'java'.

If you need to check the underlying OS, use rbconfig.

require 'rbconfig'
include Config

case CONFIG['host_os']
   when /mswin|windows/i
      # Windows
   when /linux/i
      # Linux
   when /sunos|solaris/i
      # Solaris
   else
      # Whatever
end

There's also the sys-uname library if you need more detailed
information.

Regards,

Dan