ViewPoint Manual

Using ViewPoint
ViewPoint Manual—426801-001
2-20
Using Define Process Commands
Note that the name for the PERUSE defined process is the same as its program
name. However, the defined process, FUP, is different; its name is FP.
The input queues (for queuing input commands) are shown to be empty, as are
the output queues (for receiving output information from the processes). Both
processes are ready to accept commands.
d. Type the command PERUSE.
Note that the TACL history number (enclosed in hyphens) precedes the
PERUSE prompt (_) and keeps increasing as you continue to issue commands to
your defined process.
e. Press BREAK to return to TACL.
The PERUSE process keeps running and remains ready for commands, as
shown in the next step.
f. Type > PINFO.
Note that PERUSE is still ready.
g. Type > FP to access your defined FUP process by using its logical name.
The FUP prompt is a hyphen; thus two hyphens follow the history number.
h. Type the FUP command INFO to list the files in your subvolume.
If your subvolume has many files, try this command again and be ready to press
the BREAK key midway through the listing. BREAK returns you to TACL,
while leaving some output from the process in its output queue.
i. Press BREAK to return to TACL.
j. Type > PINFO and observe the output queue.
The output queue is no longer empty. It might have several text lines if there
was information left to display when you pressed the BREAK key.
k. Type > PSHOW FP to examine the contents of the queue.
The remaining lines in the output queue now list out. PSHOW, however, does
not empty the queue, but merely shows its contents.
4. Type > POUT FP. The same lines list out again, but this time the queue is emptied
(as another PINFO would show).
5. Do you want to access a remote process?
If yes, follow the next procedure, beginning with Step 4.
If no, type > UNDP * to stop processes defined with DP.
This command removes the definitions of the two processes you defined.
6. Press SF16 to exit.