[hercules-os380] piping

[[e-mail] [hercules-os380]]

From TSO I would like to be able to go:

proga | progb

and have the output of proga piped to the
input of progb.

The way I was thinking this could work is that
proga could check its command arguments
and see the "|" and instead of using PUTLINE
for stdout it would instead direct the output
to a temp file.

Then when it calls progb it would provide a
DD override list for just SYSIN, and progb
would respect that and open the given
DD name instead of using GETLINE.

For this to work, it would require proga to
start progb, and even though progb is a
flexible TSO CP, it should also be flexible
enough to accept a DD override list. I am
not sure whether ATTACH can start
progb from the TSO environment with a
DD override list. I would like progb to still
use PUTLINE for its output, as there
would be no override for SYSPRINT in
the above scenario, only SYSIN.

Any idea whether this is feasible?

Thanks. Paul.

[[e-mail] [hercules-os380]]

And another question.

Is there a facility to get a temporary dataset
allocated, and preferably get a system-generated
DD name too.

Currently when I dynamically allocate files
they are given DD names of PDPxxxHD,
but that will cause clashes and I don't
know how to overcome that.

Thanks. Paul.

['Hamilton, Robert' [e-mail] [hercules-os380]]

There is a PIPE tool; not enough people have requested that it be made available generally in TSO. It was written in CMS, and has been ported to run in REXX procedures in Netview, but to my knowledge, isn’t yet available for use either in REXX or at the command level in TSO. An RFE might be available, but if not, it would be worth it to have the current PIPE tool, and the ability to add pipe stages as easily as they do in CMS, made available for TSO.

R;



Rob Hamilton
Infrastructure Engineer
Chemical Abstracts Service

From: hercules-***@yahoogroups.com [mailto:hercules-***@yahoogroups.com]
Sent: Friday, June 15, 2018 6:50 PM
To: hercules-***@yahoogroups.com
Subject: [hercules-os380] piping



From TSO I would like to be able to go:

proga | progb

and have the output of proga piped to the
input of progb.

The way I was thinking this could work is that
proga could check its command arguments
and see the "|" and instead of using PUTLINE
for stdout it would instead direct the output
to a temp file.

Then when it calls progb it would provide a
DD override list for just SYSIN, and progb
would respect that and open the given
DD name instead of using GETLINE.

For this to work, it would require proga to
start progb, and even though progb is a
flexible TSO CP, it should also be flexible
enough to accept a DD override list. I am
not sure whether ATTACH can start
progb from the TSO environment with a
DD override list. I would like progb to still
use PUTLINE for its output, as there
would be no override for SYSPRINT in
the above scenario, only SYSIN.

Any idea whether this is feasible?

Thanks. Paul.


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