Re: running a DOS batch file from a shell script - script doesn't wait for batch file to complete before continuing

[Andy Sun <asun at sayeh dot ca>]

Hi Larry,

Since you were the only person who was kind enough to take the time to respond
to my initial question, I owe it to you to provide a followup on this subject.

I wrote a few DOS batch files as well as shell scripts to try and 
troubleshoot the
problem. I managed to track down the problem to the Pro/E executable 
pro_batch_t.exe.
Depending on whether the "-text" option is provided to pro_batch.bat, it 
will either
run the UI executable or the command-line executable pro_batch_t.exe.

The problem seems to come from pro_batch_t.exe. This program apparently
wants to run in the background and therefore it doesn't matter whether you
invoke it from a DOS batch file or a Cygwin shell script, the batch 
file/script will
continue to run before pro_batch_t.exe terminates. The version of Pro/E in
question is Release 20.

To solve my problem, I added two loops to my scripts, one to check for the
presence of the log file pro_batch.log.1 every 5 seconds and upon detecting
it checks every 5 seconds for the keyword "Result" which is the last line of
pro_batch.log.1 when pro_batch_t.exe is completed. It seems to do the job.

Andy

At 23:46 12/09/04 -0500, you wrote:
> At 11:22 PM 12/9/2004, you wrote:
> >I guess I should have been more specific with my original posting...
> >
> >I was running pro_batch in command-line mode (pro_batch -text ...) and not
> >interactive mode, i.e. not using the GUI at all. I thought it was 
> implied since
> >I was talking about running a shell script and a batch file. The shell 
> script
> >actually constructs the command-line and input file automatically and then
> >kicks off the DOS batch file. The script is supposed to monitor to contents
> >of the file pro_batch.log.1 afterwards but it started to parse the file 
> contents
> >even before the DOS batch file is completed. If I forced a long wait by 
> adding
> >a "sleep 300" after the DOS batch file command, parsing was done properly.
> >However, I cannot set a fix wait time as it depends on the complexity of the
> >Pro/E assembly.
> >
> >You are correct in that the pro_batch interactive mode does work.
>
>
> Well, I guess I need a simple example then.  So far, everything I've
> tried works fine.
>
>
>
> --
> Larry Hall                              http://www.rfk.com
> RFK Partners, Inc.                      (508) 893-9779 - RFK Office
> 838 Washington Street                   (508) 893-9889 - FAX
> Holliston, MA 01746


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