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  -t   Test .ZIP file integrity

  This option is used to test files within a .ZIP file in order to verify
  that they are valid and have not been corrupted.  PKUNZIP will perform all
  the actions that would normally be taken during a .ZIP file extraction,
  except that files will not be written to disk.

  The data will be extracted and checked against the CRC to ensure it's
  validity.  After each file is checked it's name will be displayed with an
  "OK".

     C:\PKSTUFF>pkunzip zc102 -t

     Searching ZIP: ZC102.ZIP - PKWARE Support BBS (414) 354-8670
     Testing: ZC.DOC        OK
     Testing: ZC.EXE        OK
     Testing: ORDER.FRM     OK
     Testing: VER-HIST.TXT  OK

  In this example a command is issued which performs a test on the .ZIP file
  "zc102".  As each file is tested its name is displayed.  Note that the
  .ZIP file comment is displayed.

  If you test a file that is not a .ZIP file, or specify particular files
  within the .ZIP file that do not exist, you will receive the message:

     PKUNZIP: (E11) No file(s) found.

  Testing a .ZIP file with errors would produce a display something like
  this:

     Searching ZIP: PROBLEM.ZIP
     Testing: WORLD.M~      PKUNZIP: (W15) Warning! file fails CRC check
     Testing: CORELDRW.BPT  OK

     PROBLEM.ZIP has errors!

  Normally, a CRC failure as above indicates that a file has been damaged
  either in storage or transmission.  For instructions on attempting to
  repair a .ZIP file that has been corrupted, see PKZIPFIX in the Trouble
  Shooting section.