RUN COMMAND - HPUX

Thu, 21 Apr 2005 15:27:50 +0200

Hi Mark,

Thanks for the explanation.

So we may have to try the way that Rudolf and Joe suggested, using files to
pass values from the son process back to the parent process.

Regards

Nicholas.

Internet
Mark.Fry@cognos.com@lists.sowder.com - 21/04/2005 12:07

Sent by:    powerh-l-admin@lists.sowder.com

To:    Nicolas AU, powerh-l

cc:

Subject:    RE: RUN COMMAND - HPUX

Hi Nicholas,

Well it's been a while, but I remember going round this loop a number of
years ago.

You want to execute tests1 in the same shell?  Hmmm...  The problem is
that when you issue a RUN COMMAND, your current process is not in the
original shell, but rather a child of the quick process used to fire up
the screen in the first place.  If you want your command to run in a
shell, you have to ask for it (ie fork a new shell below your quick
process by doing RUN COMMAND "sh -c '. test1'").  Of course, as soon as
the RUN COMMAND has finished, you drop back to the quick process (ie
your screen) and lose whatever variables were set in your forked shell.

>From within your screen, you cannot make changes to the original shell
you were in before you started the screen, as it is the parent process
of your screen, which in turn is the parent process of whatever you ask
for in your RUN COMMAND.  You can see this effectively if you issue a
RUN COMMAND "ksh" from quick.  When you run the command, you fork a new
shell.  It's parent is not your original shell, but rather the quick
process for your screen (do a ps -f to see this).

Looks like you will need to source tests1 before you launch quick, or
else look at using the SETSYSTEMVAL function to set the environment
variables instead of using your script.

Hope this clarifies things a bit.

Cheers!

Mark Fry
Mark.Fry@Cognos.com

-----Original Message-----
From: powerh-l-admin@lists.sowder.com
[mailto:powerh-l-admin@lists.sowder.com] On Behalf Of
nicolas.au@bnpparibas.com
Sent: 20 April 2005 18:13
To: powerh-l@sowder.com
Subject: RUN COMMAND - HPUX

Hi All,

We are migrating from PH 8.29.D on HP3000 to PH 8.43.D on HP9000 (HPUX)
using Eloquence.

We have experienced a little problem in QUICK  using the procedural verb
'RUN COMMAND'

We are trying to execute a script file using the procedural verb 'RUN
COMMAND'  using the Korn Shell  '. scriptfile'  (dot) command format.

What we want is to execute the scriptfile that containing a set of
commands in the current shell environment so that any variable set by
the commands in the scriptfile will be able to be retrieved by the
QUICK's program that executes the scriptfile  using the GETSYSTEMVAL
function.

For example what we are trying to do is :

RUN COMMAND ". tests1 "  ON ERROR CONTINUE

We got the error "sh: .: Execute permission denied."

What have we done wrong?

What we ultimately want is to be able to execute a QUIZ program using
the 'RUN COMMAND' verb and want the QUICK program to be able to pick up
any variables that are set by the QUIZ program using the GETSYSTEMVAL
function.
We could do these things easily in HP3000 but with HP9000, it is more
difficult because of the different shell environment that the QUIZ
program is run.

Any info on how to use the RUN COMMAND to execute scriptfile in the same
shell environment will be very much appreciated.

TIA.

Nicolas.

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"message") sont etablis a l'intention exclusive de ses 
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message par erreur, merci de le detruire et d'en avertir 
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