mt(1)                      DG/UX 4.30                       mt(1)



     NAME
          mt - magnetic tape manipulating program

     SYNOPSIS
          mt [ -f tapename ] command [ count ]

     DESCRIPTION
          Mt is used to give commands to a magnetic tape drive.  If a
          tape name is not specified, the environment variable TAPE is
          used;  if TAPE does not exist, mt prints an error message.
          Note that tapename must reference a raw (not block) tape
          device.  By default mt performs the requested operation
          once.  Operations may be performed multiple times by
          specifying count.

          The available commands are listed below.  Only as many
          characters as are required to uniquely identify a command
          need be specified.

          eof, weof
               Write count end-of-file marks at the current position
               on the tape.

          fsf  Forward space count files.

          fsr  Forward space count records.

          bsf  Back space count files.

          bsr  Back space count records.

          rewind
               Rewind the tape (Count is ignored).

          offline, rewoffl
               Rewind the tape and place the tape unit off-line (Count
               is ignored).

          status
               Print status information about the tape unit.

          Mt returns a 0 exit status when the operation(s) were
          successful, 1 if the command was unrecognized, and 2 if an
          operation failed.

     FILES
          /dev/rmt/*     Raw magnetic tape interface

     SEE ALSO
          dd(1), ioctl(2), environ(5)





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