From: Laurent Julliard <laurent@...>
Date: 2004-10-23T06:21:54+09:00
Subject: [Q] Problem with popen on WIn32 (1.8.x)

Can anybody tell me why the following Ruby code that uses popen 
doesn't work at all on my Windows XP (Pro  SP1) machine, ruby 1.8.2 
preview2 or 1.8.1?

you.rb
------
while true
   sleep 1
   puts "This line should print in me.rb"
end

me.rb
-----
pig = IO.popen("ruby.exe you.rb", "w+")

while true
   pig.gets
end

Launch me.rb and you'll see that no output is showing at all. On Linux 
it works like a charm.

If you succeed in making this work can you tell me which version of 
Ruby and Windows you are using?

Thanks for all your help

Laurent