mt - magnetic tape utility
mt [-v] [-f device]
command [count]
The mt command performs certain control operations on tape
devices. If no device is specified with the -f option and the
TAPE environment is not set, the device /dev/rmt/c0s0n is used.
The command argument may be one of:
- erase
- Erase the entire tape.
- rewind
- Rewind the tape.
- retension,
ret
- Rewind the tape, then wind it to the end of reel, and rewind it
again.
- wfm, eof,
weof
- Write a file mark at the current position.
- sfm, fsf
- Seek past the next file mark.
- bsf
- Seek back over the previous file mark.
- fsr
- Seek forward to next record.
- bsf
- Seek backward to previous record.
- enddata,
append, feom
- Seek past the end of written data.
- offline,
rewoffl
- Rewind the tape and place the tape unit offline.
- status
- Report the status of the tape device.
The optional count argument specifies the number of blocks
or records to seek, marks to be written, etc.
The -v option causes mt to report the status of the
tape device.
- TAPE
- Used as tape device if no device argument is given on the command
line.