From: Zhao Yi <youhaodeyi@...>
Date: 2009-01-05T15:08:14+09:00
Subject: Question about run external program in Ruby

I use this method to run a external program in ruby:

io=IO.popen("lsa 2>&1")do |f|
   while line =f.gets do
       puts line
   end
end

I can get both stdout and stderr output but how can I get the command
return value?

thanks.
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