Commands:

DATA            Specifiy the name of the data file to be used as in
                a normal command string "DATA=DEV:FILE.EXT[P,PN]".
MAKE            Call TABLE.SAV to create the conversion tables.
EXIT            Terminate the program.
HELP            This little message.
BYE             Call LOGOUT into core and execute it.
RETAIN          Allows the user to accumulate commands.
RUN             Perform the current command string.
ERASE           Erase retained commands.
PRINT           Print the current command string.

Switches:

Buffers:x       Use x buffers.
Advance:x       Advance x files before operation.
Backspace:x     Backspace the tape x files before operation.
Block:x         Set blocking factor to x.
Record:x        Set record size or size of largest block to x.
Density:arg     Set mag-tape density to arg [arg=200,556,800].
Retain          Retain the following commands.
Run             Perform the current command and retain it.
Help            These few hints.
Label:arg       Set label type as described below for mag-tape
ode:arg        Set file character set as described below.
Parity:arg      Set mag-tape parity [odd=odd, even=even, default=odd].
Password:arg    Set the password for GE labels.
Reel:x          Set serial number in labels that have this feature.
* Industry      Initialize for industry compatible 9-channel tape.
* Scan          Scan tape for file named.
* Error         Don't ignore checksum and parity errors.
* Span          Records cross blocks [implied if "/block:0"].
* Rewind:arg    Rewind tapes [arg=before, after, always, omitt]
* Unload        Unload tape after operation.
* Tell          Type file names on a wild card search.
* List          List the device directory.
* Flist         List the device directory [file names only].
* Header        Print headers on the line printer.
* Crlf          Ascii file has crlf's.

Note:   To turn a switch off concatenate "no" with the switch.
        Switches flaged with an (*) have this feature.

/Label - switch modifiers:

None            Mag-tape has no labels just data [default].
Mine            Special labels for DECsystem-10.
Digital         Process labels as standard DIGITAL labels.
Burroughs       Process labels as standard BURROUGHS labels.
IBM             Process labels as standard IBM labels.
GE635           Process labels as standard GE-635 labels.

Note:   Labels are written in the mode specified except for IBM
        and GE-635 labels. IBM labels are written in BCD for
        7-track drives and EBCDIC for 9-track drives. GE-635
        labels are always written in GE-BCD.

/Mode - switch modifiers:

ASCII           File character set is 7-bit ASCII.
HPASCII         File character set is 8-bit ASCII.
GEASCII         File character set is 9-bit ASCII.
IMAGE           File is read and written as 36-bit words.
SIXBIT          File character set is SIXBIT.
FIXSIX          File character set is SIXBIT with no control words.
BCL             File character set is BCL.
BCD             File character set is BCD.
GEBCD           File character set is GE-BCD.
HONBCD          File character set is HONEYWELL BCD.
EBCDIC          File character set is fixed EBCDIC.
VEBCDIC         File character set is variable EBCDIC.

The end of the input record is determined by the mode of the
input file as described below:

ASCII   Terminated by a carriage-return character or record count.
SIXBIT  Determinted by the header word in front of each record.
FIXSIX  Always copies the number of bytes specified by the record size.
BCL     Always copies the number of bytes specified by the record size.
BCD     Always copies the number of bytes specified by the record size.
EBCDIC  [Fixed] Always copies the number of bytes specified by the
        record size.
EBCDIC  [Variable] Determined by the header word in front of each
        record.

In general all commands may be abbreviated to any number
of characters that will allow that command to be unique. However
no more then six characters are checked for valdit in any of
the commands.

The characterS "?" and "*" may be used to denote a wild card for files
on mag-tape, disk, or dectape. The character "@" denotes a
command file which CHANGE will read for commands.  The "@" must
be at the END of the file name.  If only
an altmode is typed change will enter dialog mode.

.KJOB
.
