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How to return a value from java to Shell Script?

 
Greenhorn
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Hi,

I need help for the below requirement.This is the requirement.Please help me.The Java file will be called from shell script.But here we are caling the main method.So I need to clear to return and also how to check the HEAP DUMP or Java Core resulted

"Add some logic at the bottom of the script to check for a successful return code from java, to also ensure that no heap dump or java core resulted, and to grep the log file(s) for messages that reveal an error which warrants an alert".
 
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The process return value is the argument passed to System.exit(int) .
 
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