4.3BSD-UWisc/man/cat1/mt.1

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MT(1)               UNIX Programmer's Manual                MT(1)



NAME
     mt - magnetic tape manipulating program

SYNOPSIS
     mt [ -f _t_a_p_e_n_a_m_e ] _c_o_m_m_a_n_d [ _c_o_u_n_t ]

DESCRIPTION
     _M_t 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, _m_t uses the device
     /_d_e_v/_r_m_t_1_2.  Note that _t_a_p_e_n_a_m_e must reference a raw (not
     block) tape device.  By default _m_t performs the requested
     operation once.  Operations may be performed multiple times
     by specifying _c_o_u_n_t.

     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 _c_o_u_n_t end-of-file marks at the current position
          on the tape.

     fsf  Forward space _c_o_u_n_t files.

     fsr  Forward space _c_o_u_n_t records.

     bsf  Back space _c_o_u_n_t files.

     bsr  Back space _c_o_u_n_t records.

     rewind
          Rewind the tape (_C_o_u_n_t is ignored).

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

     status
          Print status information about the tape unit.

     _M_t returns a 0 exit status when the operation(s) were suc-
     cessful, 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)





Printed 12/27/86           May 9, 1986                          1