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REWIND command

The REWIND command returns a magnetic tape to its load point  (logical
beginning, the beginning of the first file).


Format

     @REWIND (DEVICE) dev:  /switch

     where:

     dev:           is the name of the tape set or magnetic tape drive
                    that  you  want  to  rewind.   The colon after the
                    device name is optional.

     /switch        is one of the following:

                         /CURRENT-VOLUME-ONLY
                                        rewinds tape set to  beginning
                                        of currently mounted volume

                         /ENTIRE-VOLUME-SET
                                        rewinds tape set to  beginning
                                        of first volume
                                        Default - ENTIRE-VOLUME-SET

                           Note:   these switches can be used only for
                                   devices   of  the  form  MTn:,  not
                                   MTAn:.


Restrictions

     REWIND with Open Files

          If you have given a CTRL/C to exit from a program  that  has
          opened  a  magnetic  tape  set  and you then give the REWIND
          command for that tape set, the system will first ask if  you
          want  to  close  the  associated  file.   You must do so for
          REWIND to succeed, but will probably be unable  to  continue
          the  program  from  that  point because the file will now be
          closed.


Related Commands

     BACKSPACE     for moving a magnetic  tape  backward  a  specified
                   number of files or records

     DIRECTORY     (when  used  with  a  magnetic  tape  device)   for
                   rewinding  a  tape set, printing a directory of its
                   files, and again rewinding the tape set

     SKIP          for moving a  magnetic  tape  forward  a  specified
                   number of files or records

     UNLOAD        for rewinding a magnetic tape completely  onto  the
                   source reel


Examples

     1.  Rewind your magnetic tape.

         @REWIND DAY:

     2.  Mount a tape, and prepare to copy files onto  it.   (Use  the
         REWIND  command  to be sure you are at the beginning.)  After
         copying the files,  rewind  the  tape  and  (using  the  COPY
         command)  read  the first one.  Then give TOPS-20 commands to
         free the resources you have been using.

         @MOUNT TAPE DAY:
         [Mount Request DAY Queued, Request-ID 183]
         [Tape set DAY, volume DAY mounted]
         [DAY: defined as MT0:]
         @MOUNT STRUCTURE SNARK:
         Structure SNARK: mounted
         @ACCESS SNARK:
         @REWIND DAY:
         @COPY SNARK:FIL-1.TAP DAY:
          SNARK:FIL-1.TAP.1 => MT0:FIL-1 [OK]
         @COPY SNARK:FIL-2.TAP DAY:
          SNARK:FIL-2.TAP.1 => MT0:FIL-2 [OK]
         @COPY SNARK:FIL-3.TAP DAY:
          SNARK:FIL-3.TAP.1 => MT0:FIL-3 [OK]
         @REWIND DAY:
         @COPY DAY: TTY:
          MT0: => TTY:

         !THIS IS THE FIRST FILE.!
         @DISMOUNT TAPE DAY:
         [Tape dismounted, logical name DAY: deleted]
         @END-ACCESS SNARK:
         @DISMOUNT STRUCTURE SNARK:
         Structure SNARK: dismounted
         @