ViewPoint Manual

Process Definition Commands

ViewPoint Manual—426801-001

4-2

Define Process (DP) Command

The Define Process (DP) command defines a background process and enters the run

parameters of the process in the Define Process directory. The DP command also starts

the process. You have the option of defining the process, and not starting it, by using

the NOSTART option (see NOSTART later in this section).

program-file

is the name of the file containing the object program to be run. Partial file names

are expanded using the current TACL search list.

option

is any of the following options:

CPU cpu-number

assigns the CPU number of the processor where the defined process is to

execute. Specify cpu-number as an integer in the range 0 through 15. If you

PSTART Starts a defined process.

PSTOP Stops a defined process, leaving it in a stopped and defined state.

TOSS Deletes accumulated output or unprocessed input from either an input or

output queue.

UNDP Removes a background process.

WAIT Displays accumulated output from a background process and waits for the

process to prompt for more input.

WA I T R E A D

Waits for a background process to prompt for more input.

Caution. You retain your local system and volume environment when you use Define

Process, so make sure you use appropriate SYSTEM and VOLUME commands wherever

necessary to avoid device location mistakes.

You should also be aware that Define Process does not do echo suppression to terminals. For

example, when you log on and use PS MAIL, you normally do not see your password echoed

back to the terminal; however, if you run PS MAIL as a defined process, your password is

echoed on the terminal. This could be a security problem.

Note. TACL must be a named process in order for you to use the DP command.

DP program-file [ / option [ , option ]... / ]

[ param-string ]

Table 4-1. Define Process Commands (page 2 of 2)

Command Description