MT(1-SysV)          RISC/os Reference Manual           MT(1-SysV)



NAME
     mt - magnetic tape manipulating program

SYNOPSIS
     mt [ -N hostname ] [ -f tapename ] [ -t 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 reference a raw (not
     block) tape device.  By default mt performs the requested
     operation once.  Operations may be performed multiple times
     by specifying count.  If hostname is specified, the opera-
     tion is performed on the remote system hostname, using the
     magtape protocol described in rmt(8C).

     The available commands are listed below.  Only as many char-
     acters 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.

     ret                 Retension the tape (recommended for new
                         tapes).

     online              Place tape unit online (load tape).

     append              space to end of recorded data to allow
                         append to tape

     mt returns a 0 exit status when the operation(s) were suc-
     cessful, 1 if the command was unrecognized, and 2 if an
     operation failed.



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MT(1-SysV)          RISC/os Reference Manual           MT(1-SysV)



FILES
     /dev/rmt* Raw magnetic tape interface

SEE ALSO
     mtio(7), ioctl(2), environ(5)


















































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