From: Brian Candler <b.candler@...>
Date: 2010-01-03T07:15:49+09:00
Subject: Re: "Dummy" IO object to push and pull data?

Oh, and there is also IO.pipe, which is unidirectional under most Unix 
flavours.

>> rd, wr = IO.pipe
=> [#<IO:0x7f8a4c31d0e8>, #<IO:0x7f8a4c31d098>]
>> wr.puts "hello"
=> nil
>> rd.gets
=> "hello\n"
>> 
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