IO(3)

NNAAMMEE
       IO - load various IO modules

SSYYNNOOPPSSIISS
           use IO;

DDEESSCCRRIIPPTTIIOONN
       IO provides a simple mechanism to load all of the IO
       modules at one go.  Currently this includes:

             IO::Handle
             IO::Seekable
             IO::File
             IO::Pipe
             IO::Socket

       For more information on any of these modules, please see
       its respective documentation.