test what the numeric file descriptor is for your I/O stream (to_i also works). : IO.fileno « File Directory « Ruby

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Ruby » File Directory » IO.fileno   test what the numeric file descriptor is for your I/O stream (to_i also works). ios = IO.new( 1, "w" ) ios.puts "IO, IO, it's off to the computer lab I go." ios.fileno # => 1 ios.to_i # => 1 $stdout.fileno # => 1   Related examples in the same category

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