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PDP-10 Archives
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BB-JR93L-BB_1990
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10,7/declar/declar.hlp
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DECLARE Command
The DECLARE command defines new monitor commands to run specified
programs for your job. You can invoke any program with a
user-defined command. When you define a command, the monitor
searches your command table and then the monitor command table.
Exact definitions are given precedence. An exact definition
occurs if you type the complete, exact command name. Inexact
definitions occur when a command is abbreviated. If there are
conflicts within the exact definitions, your definitions are
given precedence.
To use abbreviations when typing a command, you can define
"uniqueness" for a command. The monitor will behave as if the
command had been given an exact definition. If conflicts arise,
the monitor searches its own command table without searching your
command table.
Format
DECLARE name/switch=filespec
Where: name is a command name of 1 to 6 alphanumeric
characters.
filespec is the complete file specification of an
executable program. There is no default filespec.
/switch is one of the optional switches listed below.
Switches allowed by this command are:
Switch Function
/AUTOPUSH Defines a command to automatically PUSH to a new,
temporary context, in which the called program
will run. When the program is completed, the
original context is restored, and the temporary
context is destroyed.
NOTE
Do not define the PATH or DECLARE programs
with the AUTOPUSH switch. This is because
the original context is restored and all
changes made in the temporary context are
destroyed when they finish running.
/CLEAR Clears all user-defined commands. Do not include
a command name with this switch.
/KILL Removes the definition of a command. Requires a
command name.
/LIST Lists the command names currently defined by your
job. Do not include a command name with this
switch.
/UNIQUE:n Defines the number of characters in the command
that must be typed to be interpreted as your
definition and that cannot be overridden by a
monitor command. The variable n can be 1, 2, 3,
4, ALL, NONE, or a list of these values separated
by commas and enclosed in parentheses. /NOUNIQUE
is the same as /UNIQUE:NONE.
Characteristics
Requires LOGIN.
Leaves your terminal at monitor level.
Destroys your core image.
Example
Use DECLARE to define a command, LOOK, to run the SETSRC program.
.DECLARE LOOK=SYS:SETSRC.EXE<RET>
Use DECLARE to display your job's command list. Other commands
in the following example were defined previously.
.DECLARE/LIST<RET>
EDIT DSR TAPE LOOK
Use the new command. Use CTRL/T to display the current state of
your job, including the name of the program that is running.
Note that, although CTRL/T is shown here, it does not echo on
your terminal.
.LOOK<RET>
*<CTRL/T>
Day: 1:02:23 Run: 0.13 Rd:32 Wr:0 SETSRC 4+OP T1 PC:002030
Input wait for TTY52:
<CTRL/Z>
EXIT
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