Thanks guys.
I ended up using a file based on the calling shell's PID. It works but
thought there might be a more elegant solution.
- Original Message -
From: Ken Wallis [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, July 22, 2004 10:10 PM
Subject: RE: [U2] [UD] Returning data to ksh
Doyen Klein wrote:
You could at the start of the shell write an 'in-process flag' (simply
create file with a specific name).
As the final step in the process, when completed
successfully, delete that file.
Then .
If [exists(file)] - you know the process failed.
You could also look at it the other way round - rm -f a status file before
you kick off the udt process, then afterwards, if the file exists and
contains a good status code then all is well, otherwise it isn't.
Something
a bit like this:
#!/usr/bin/ksh
# could try something clever to give you a unique temp file name here if
you
like
export STATFILE=/x/y/z
rm -f $STATFILE
udt !eof
YOURCOMMANDSHERE
WRITESTATUS
quit
!eof
if [ -f $STATFILE ]
then
head -n 1 $STATFILE | read STAT ERRMSG
else
STAT=99
ERRMSG=cannot find status file $STATFILE
fi
if [ $STAT = 0 ]
then
# cool
else
# not cool
echo $ERRMSG 2
exit $STAT
fi
And WRITESTATUS would be a cataloged program that might look like this:
PROGRAM WRITESTATUS
* maybe use the @USER... variables or your own specific named common to
keep
track of things
COMMON /STATCOM/ ERRSTAT, ERRMSG
OSWRITE ERRSTAT: :ERRMSG TO GETENV(STATFILE) ON ERROR ABORT
STOP
END
HTH,
Ken
Ralph Melia wrote:
I'm working on a project that involves integrating our (UD 5.2 on AIX)
programs into a job stream via ksh scripts. And I need a way of
communicating back to the calling shell whether the unidata process
(program) completed successfully or not. The relevant part of
the shell would look something like:
$UDTBIN/udt program parameters
if [ it failed ]; then do something
I'm thinking that there must be a simple solution, but I'm
drawing a blank.
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