HP OpenVMS DCL Dictionary
Terminates execution of a command, an image, a command procedure, a
command procedure that was interrupted by a Ctrl/Y function, or a
detached process or subprocess.
Requires GROUP privilege to stop other processes in the same
group. Requires WORLD privilege to stop processes outside your
Requires that the process be in your group.
Specifies the name of the process to be deleted. The process name can
have from 1 to 15 alphanumeric characters. If the process-name
includes spaces or lowercase letters, enclose the name in quotation
marks (" ") to preserve the correct spelling.
The specified process must have the same group number in its user
identification code (UIC) as the current process; you cannot use the
process-name parameter to stop a process outside of your
group. To stop a process outside of your group, you must use the
The process name is incompatible with the /IDENTIFICATION qualifier; if
you use the /IDENTIFICATION qualifier, the process name is ignored. If
you include neither the process-name parameter nor the
/IDENTIFICATION qualifier with the STOP command, the image executing in
the current process is terminated.
The STOP command causes an abnormal termination of the image that is
currently executing. If the image has declared user-mode exit-handling
routines using calls to the $DCLEXH system service, by default these
exit handlers are not invoked. If execution of exit-handling routines
is required, use the EXIT command or the STOP/EXIT command to terminate
the image so that the mode-specific exit handlers are invoked.
If the STOP command is executed from a noninteractive process (such as
a batch job), the process terminates.
Note that when an image has been interrupted by a Ctrl/Y function and
subsequently the DCL RUN command or a non-CLI-based DCL verb is
entered, the interrupted image is terminated. However, in this case,
exit-handling routines execute before the next image is run. For more
information about process and image rundown processing, see the
OpenVMS User's Manual or the HP OpenVMS Programming Concepts Manual.
If you press Ctrl/Y to interrupt a command procedure and then enter the
STOP command, or if the STOP command is executed in a command
procedure, all command levels are unstacked and control returns to
command level 0 (DCL level with the $ prompt).
If you specify a process name or process identification (PID) code, the
STOP command terminates the image currently executing in the specified
process and deletes the process. If the process is noninteractive, no
notification of the deletion occurs and the log file for the job is not
Specifies the system-assigned process identification (PID) code. When
you create a process with the RUN command, the RUN command displays the
PID code of the newly created process. The /IDENTIFICATION qualifier
can be used in place of the process name parameter.
You can omit any leading zeros in specifying the PID code.
/IMAGE [/IDENTIFICATION=pid] [process-name]
Calls the $FORCEX system service to stop the image of the target
process specified in the process id or process name that is currently
executing. The target process is not deleted.
If you omit the /IDENTIFICATION qualifier and the process name, the
STOP/IMAGE command is identical to the STOP command.
Specifies an option to call exit handlers prior to deletion of the
The following table describes the access mode options:
Execute executive and more privileged mode exit handlers (default, if
no access mode specified).
Execute kernel mode exit handlers.
Execute supervisor and more privileged mode exit handlers.
Execute user and more privileged mode exit handlers.
$ RUN MYPROG
The RUN command in this example begins executing the image MYPROG.
Subsequently, the Ctrl/Y function interrupts the execution. The STOP
command then terminates the image.
The @ (execute procedure) command in this example executes the
procedure TESTALL.COM. Subsequently, the Ctrl/Y function interrupts the
procedure. The STOP command then returns control to the DCL command
$ RUN/PROCESS_NAME=LIBRA LIBRA
%RUN-S-PROC_ID, identification of created process is 0013340D
$ STOP LIBRA
The RUN command in this example creates a subprocess named LIBRA to
execute the image LIBRA.EXE. Subsequently, the STOP command causes the
image to exit and deletes the process.
$ ON ERROR THEN STOP
In a command procedure, the ON command establishes a default action
when any error occurs in the execution of a command or program. The
STOP command stops all command levels. If this ON command is executed
in a command procedure, which in turn is executed from within another
procedure, control does not return to the outer procedure, but to DCL
command level 0.
Terminates the process and runs exit handlers beginning at executive
Terminates the current user image being executed by process 12345678.