In the applications on which I work, several files get written to (or updated) by multiple programs. Occasionally, the eventual contents of a file don't match what I think ought to be in the file — obviously, some program is updating the file in a way that I'm not expecting. There are two ways to track down the errant program: Journal the file Add one or more triggers to the file Because I don't have much experience with journaling, I like to use the trigger method. ...

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