User`s guide

SET
• Program swapping on exit (SET EXIT)
• IND and KMON handling of command and control files (SET KMON)
How SET Commands Work
SET commands modify monitor parameters and device-handler parameters. The
monitor SET commands affect only the copy of the monitor in memory while most
of the handler SET commands affect only the copy of the handler on the system
disk. The copy of the handler in memory is generally not affected. This means, for a
handler SET command to take effect, you usually have to issue the SET command,
unload the handler (if it is loaded), and then load the new "set" modified copy of the
handler. When a SET command modifies the memory copy of the handler, it is noted
in that SET command description.
With the exception of the SET TT, SET USR, and SET system-parameter commands,
the SET command locates the device-handler file SY:device.SYS and permanently
modifies it.
Specifying a Device Handler
Specify a device handler with the SET command as follows:
SET XXn: condition
Where XX is the standard two-letter mnemonic for the device handler name, n is
the unit number (0–7), and condition is how you want the handler modified.
Specifying an Extended-Unit Device Handler
Specify an extended-unit device handler (one for which you have generated extended
device-unit support) in the format:
SET Xnn: condition
where X is a one-letter mnemonic (A–Z), nn is an octal unit number (0–77), and
condition is how you want the handler modified. The format X: is valid and means
X0:.
D is the one-letter name for the DU (MSCP) device handler with extended device-
unit support. L is the one-letter name for the LD (logical disk) device handler with
that support (see SET DUx and SET LDx).
You can optionally use two-letter physical device names for units 0 through 7 of
an extended device-unit handler; for example: DU7. Therefore, you do not have to
modify any existing command files or procedures that refer to only the first 8 units
of an extended device-unit handler. You must, however, specify units 10 through 77
8
only by the 1-letter convention and octal number (for example: DU10).
Ensuring a System Set the Way You Want It
SET commands permanently modify device handlers (except where noted); this
means that the conditions remain set even across a reboot.
216 RT–11 Command Descriptions