What happened was there was a connection failure with the remote server and when the script was restarted, some duplication of data occurred and it has sporadically occurred since. Oddly enough, it never happened in operation before the remote server failure. My script retrieves from the remote directory to the local directory, then the files are picked up by other scripts out of my control and placed into the third (also local) directory (among other places). From there they are distributed to customers/websites (scripts also out of my control), so duplication of data is a big no-no. I am considering trying to use the $lc->get_intersection command (List::Compare) to find files that appear in both directory lists, but I'm not sure the best way to check that files here have not already been transferred. Someone has suggested a rotating stand alone file that serves as a "memory" of which files were successfully transferred during a given time frame, but this sounds like a bit of work.

In reply to Re^2: Directory comparisons by joeymac
in thread Directory comparisons by joeymac

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