From: ara.t.howard@...
Date: 2007-02-25T13:59:15+09:00
Subject: Re: Ruby subprocess

On Sun, 25 Feb 2007, badcherry wrote:

> I am wanting inside of a ruby script to execute another ruby script in
> a subprocess in the same manner as exec().  As first thought I
> considered seeing if you can lookup the ruby executable path from
> within ruby, but I couldn't find a way of doing it.  If that was the
> case you could just say exec("/usr/bin/ruby " + "file.rb").
>
>

     require 'rbconfig'

     def which_ruby
       c = ::Config::CONFIG
       File::join(c['bindir'], c['ruby_install_name']) << c['EXEEXT']
     end

     ruby = which_ruby

     exec ruby, 'file.rb'

probably won't work on windows since the one-click breaks (or used to break)
rbconfig.

-a
-- 
be kind whenever possible... it is always possible.
- the dalai lama