This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I've a Unix shell script that calls multiple (4) java programs. It should call a java program in the sequence only if the provious program was successful.(ie program 2 should be called only if program 1 was successful).
To add to what Tom said, in Unix it is traditional to exit with a zero to indicate success. Any other value indicates some sort of error occured. In some programs the exit value tells you which error occured.
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