From: Steve Johnston <steve.r.johnston@...>
Date: 2012-01-11T09:06:05+09:00
Subject: Re: Session Gem: How to get line-by-line output from shell script using

This works. I run a perl script from ruby, and get line-by-line output 
as it runs.
---------------------
#!/usr/bin/env ruby

readme = IO.popen("/home/test/perl2.ruby.pl")
while readme.gets do
    puts $_
end
readme.close
---------------------

Thanks to 
http://pleac.sourceforge.net/pleac_ruby/processmanagementetc.html

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