MT(1)                                                                    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 uses the device /dev/rmt12.  Note that tapename must ref‐
       erence 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
       mtio(4), dd(1), ioctl(2), environ(7)


4th Berkeley Distribution         May 9, 1986                            MT(1)
 
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