IO.popen("-") : IO.popen « File Directory « Ruby

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Ruby » File Directory » IO.popen   IO.popen("-") IO.popen("-") do |mypipe|   if mypipe     puts "I'm the parent: pid = #{Process.pid}"     listen = mypipe.gets     puts listen   else     puts "I'm the child: pid = #{Process.pid}"   end end   Related examples in the same category 1.  you open up an I/O stream with dir 2.  open a program with a read/write I/O stream and handle data in both directions 3.  Open a file and write string into it

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