From: Nilez Parker <dcparker@...>
Date: 2009-12-30T02:26:48+09:00
Subject: IO.popen('-') === fork ?

I just want to know if the following two are technically equivalent
(calling fork(2) in UNIX environments):

##########

IO.popen('-') {|io|
  ...
}

#---------

fork do
  ...
end

##########

As much explanation you want to give will be appreciated, I will soak it
all up. Thanks ahead. :)
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