MT
Section: User Commands (1)
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BSD mandoc
BSD 4
NAME
mt
- magnetic tape manipulating program
SYNOPSIS
mt
[-f tapename
]
command
[count
]
DESCRIPTION
Mt is used to give commands to a magnetic tape drive.
By default
mt
performs the requested operation once. Operations
may be performed multiple times by specifying
count
Note
that
tapename
must reference a raw (not block) tape device.
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.
If a tape name is not specified, and the environment variable
TAPE
does not exist;
mt
uses the device
/dev/rmt12
Mt returns a 0 exit status when the operation(s) were successful,
1 if the command was unrecognized, and 2 if an operation failed.
ENVIRONMENT
If the following environment variable exists, it is utilized by
mt
- TAPE
-
Mt checks the
TAPE
environment variable if the
argument
tapename
is not given.
FILES
- /dev/rmt*
-
Raw magnetic tape interface
SEE ALSO
dd(1),
ioctl(2),
environ(7)
HISTORY
The
mt
command appeared in
BSD 4.3
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- ENVIRONMENT
-
- FILES
-
- SEE ALSO
-
- HISTORY
-
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