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DEFRAGMENT, MONITOR, Qualifiers, /CONTINUOUS
 *Conan The Librarian 

       /CONTINUOUS (default)
       /NOCONTINUOUS

          The /CONTINUOUS qualifier invokes a continuous
          monitor display. Entering Ctrl/C, Ctrl/Y, or Ctrl
          /Z terminates this display.

          Using /NOCONTINUOUS provides a snapshot display and
          then returns to the DCL prompt.
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