Note: The following doc assumes a PATH variable that contains /usr/bin and /usr/sbin
For commands or files that normally exist outside of these common directories,
full paths are given.
Tape commands.
Command: mt - magnetic tape
Purpose: To know the status of a tape, and to perform rewind, erase, etc.
Path: /usr/bin/mt
Syntax:mt [ -f tape device name ] command [count]
where tape device name is usually /dev/rmt/0
commands are:
status -Displays status information about the tape drive
rewind -Rewinds the tape
retension-Smooth out tape tension
erase -Erases the entire tape
fsf -Forward skips count tape files
bsf -Backward skips count tape files
eom -Skips to the end of the recorded media
Count refers to the number of times that the requested operation is to be performed.
By default, mt performs a command once; multiple operations of a command may be
performed by specifying count.
Examples:
mt -f /dev/rmt/0 status --->; This command displays the status of the tape
mt -f /dev/rmt/0 rewind --->; This command rewinds the tape
mt -f /dev/rmt/0n fsf 2 --->; This command forwards the first two files
mt -f /dev/rmt/0n bsf 2 --->; This command backwards two files
Command: tar - tape archive
Purpose: To create or restore tape archives. It is used to back up single or multiple
files in a directory hierarchy.
Path: /usr/bin/tar
Syntax:tar options device-name file-name
Where options are
cCreates the tar file from the beginning.
rReplace the existing one
tDisplays the table of contents of tape archive
uUpdate. The named files are written at the end of the tarfile if
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