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Shell Programming and Scripting
Check query execution to go further
Post 23713 by cub on Thursday 27th of June 2002 05:05:58 PM
06-27-2002
Check query execution to go further
Can any one help with script (Korn) to do following ? 
I have 3 tasks to do in a shell.
Task (1) is executing query which unloads the result into file XYZ.
Before I start Task (2) which is java program and depends on
file XYZ, I need to make sure that Task (1) is completed successfully.
Before I start Task (3) which has to do with emailing file XYZ, I need to make sure Task (1) & (2) run successfully.
Questions:
[1] How can I check whether my query run successfully or not ?
[2] How can I check that my java program runs successfully and created another file which it supposed to?
[3] How can I check whether email has been sent successfully or not ?
Quick response will be great help !!!
I have 3 tasks to do in a shell.
Task (1) is executing query which unloads the result into file XYZ.
Before I start Task (2) which is java program and depends on
file XYZ, I need to make sure that Task (1) is completed successfully.
Before I start Task (3) which has to do with emailing file XYZ, I need to make sure Task (1) & (2) run successfully.
Questions:
[1] How can I check whether my query run successfully or not ?
[2] How can I check that my java program runs successfully and created another file which it supposed to?
[3] How can I check whether email has been sent successfully or not ?
Quick response will be great help !!!
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LEARN ABOUT SUSE
task::weaken
Task::Weaken(3) User Contributed Perl Documentation Task::Weaken(3) NAME
Task::Weaken - Ensure that a platform has weaken support DESCRIPTION
One recurring problem in modules that use Scalar::Util's "weaken" function is that it is not present in the pure-perl variant. While this isn't necesarily always a problem in a straight CPAN-based Perl environment, some operating system distributions only include the pure-Perl versions, don't include the XS version, and so weaken is then "missing" from the platform, despite passing a dependency on Scalar::Util successfully. Most notably this is RedHat Linux at time of writing, but other come and go and do the same thing, hence "recurring problem". The normal solution is to manually write tests in each distribution to ensure that "weaken" is available. This restores the functionality testing to a dependency you do once in your Makefile.PL, rather than something you have to write extra tests for each time you write a module. It should also help make the package auto-generators for the various operating systems play more nicely, because it introduces a dependency that they have to have a proper weaken in order to work. How this Task works Part of the problem seems to stem from the fact that some distributions continue to include modules even if they fail some of their tests. To get around that for this module, it will do a few dirty tricks. If Scalar::Util is not available at all, it will issue a normal dependency on the module. However, if Scalar::Util is relatively new ( it is >= 1.19 ) and the module does not have weaken, the install will bail out altogether with a long error encouraging the user to seek support from their vendor (this problem happens most often in vendor-packaged Perl versions). This distribution also contains tests to ensure that weaken is available using more normal methods. So if your module uses "weaken", you can just add the following to your Module::Install-based Makefile.PL (or equivalent). requires 'Task::Weaken' => 0; AUTHOR
Adam Kennedy <adamk@cpan.org>, <http://ali.as/> SEE ALSO
Task, Scalar::Util, <http://ali.as/> COPYRIGHT
Copyright 2006 - 2009 Adam Kennedy. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of the license can be found in the LICENSE file included with this module. perl v5.12.1 2009-06-12 Task::Weaken(3)