mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-18 17:00:49 +01:00
8843e04abc
with SYSV cpio. It's also supposed to integrate rmt support, though I haven't tried this.
108 lines
2.7 KiB
Groff
108 lines
2.7 KiB
Groff
.TH MT 1L \" -*- nroff -*-
|
|
.SH NAME
|
|
mt \- control magnetic tape drive operation
|
|
.SH SYNOPSIS
|
|
.B mt
|
|
[\-V] [\-f device] [\-\-file=device] [\-\-version]
|
|
operation [count]
|
|
.SH DESCRIPTION
|
|
This manual page
|
|
documents the GNU version of
|
|
.BR mt .
|
|
.B mt
|
|
performs the given
|
|
.IR operation ,
|
|
which must be one of the tape operations listed below, on a tape
|
|
drive.
|
|
.PP
|
|
The default tape device to operate on is taken from the file
|
|
.I /usr/include/sys/mtio.h
|
|
when
|
|
.B mt
|
|
is compiled. It can be overridden by giving a device file name in
|
|
the environment variable
|
|
.BR TAPE
|
|
or by a command line option (see below), which also overrides the
|
|
environment variable.
|
|
.PP
|
|
The device must be either a character special file or a
|
|
remote tape drive. To use a tape drive on another machine as the
|
|
archive, use a filename that starts with `HOSTNAME:'. The
|
|
hostname can be preceded by a username and an `@' to access the remote
|
|
tape drive as that user, if you have permission to do so (typically an
|
|
entry in that user's `~/.rhosts' file).
|
|
.PP
|
|
The available operations are listed below. Unique abbreviations are
|
|
accepted. Not all operations are available on all systems, or work on
|
|
all types of tape drives.
|
|
Some operations optionally take a repeat count, which can be given
|
|
after the operation name and defaults to 1.
|
|
.IP "eof, weof"
|
|
Write
|
|
.I count
|
|
EOF marks at current position.
|
|
.IP fsf
|
|
Forward space
|
|
.I count
|
|
files.
|
|
The tape is positioned on the first block of the next file.
|
|
.IP bsf
|
|
Backward space
|
|
.I count
|
|
files.
|
|
The tape is positioned on the first block of the next file.
|
|
.IP fsr
|
|
Forward space
|
|
.I count
|
|
records.
|
|
.IP bsr
|
|
Backward space
|
|
.I count
|
|
records.
|
|
.IP bsfm
|
|
Backward space
|
|
.I count
|
|
file marks.
|
|
The tape is positioned on the beginning-of-the-tape side of
|
|
the file mark.
|
|
.IP asf
|
|
Absolute space to file number
|
|
.IR count .
|
|
Equivalent to rewind followed by fsf
|
|
.IR count .
|
|
.IP eom
|
|
Space to the end of the recorded media on the tape
|
|
(for appending files onto tapes).
|
|
.IP rewind
|
|
Rewind the tape.
|
|
.IP "offline, rewoffl"
|
|
Rewind the tape and, if applicable, unload the tape.
|
|
.IP status
|
|
Print status information about the tape unit.
|
|
.IP retension
|
|
Rewind the tape, then wind it to the end of the reel,
|
|
then rewind it again.
|
|
.IP erase
|
|
Erase the tape.
|
|
.PP
|
|
.B mt
|
|
exits with a status of 0 if the operation succeeded, 1 if the
|
|
operation or device name given was invalid, or 2 if the operation
|
|
failed.
|
|
.SS OPTIONS
|
|
.TP
|
|
.I "\-f, \-\-file=device"
|
|
Use
|
|
.I device
|
|
as the file name of the tape drive to operate on.
|
|
To use a
|
|
tape drive on another machine, use a filename that
|
|
starts with `HOSTNAME:'. The hostname can be preceded by a
|
|
username and an `@' to access the remote tape drive as that user, if
|
|
you have permission to do so (typically an entry in that user's
|
|
`~/.rhosts' file).
|
|
.TP
|
|
.I "\-V, \-\-version"
|
|
Print the version number of
|
|
.BR mt .
|