LOCK
Lock media.
UNLOCK
Unlock media.
REWIND
Rewind tape.
RUN
Rewind and unload tape.
READ
Read ‘readsize’ blocks.
WRITE
Write ‘writesize’ blocks.
WTM
Write ‘count’ tapemark(s).
FSF
Forward space ‘count’ file(s).
FSR
Forward space’count’ block(s).
BSF
Backward space ‘count’ file(s).
BSR
Backward space ‘count’ block(s).
READPOS
Read blockid.
LOCATE
Locate ‘blockid’.
ERG
Erase gap.
COMP
Set compression on or off.
ECC
Set ECC on or off.
MARGIN
Set EOT margin ‘margin’.
STATUS
Display status.
ASCII
Set ASCII data block display mode.
EBCDIC
Set EBCDIC data block display mode.
DUMP
Display data block at offset ‘offset’ in length ‘length’.
ERASE
Erase entire tape (data security erase).
HELP or ?
Display usage information.
EXIT or QUIT
Exit program.
arguments:
readsize
Specifies the number of blocks to read. readsize must be a value from 0 to 65535.
A value of 0 (which is the default) means all blocks, whereas any other number