It depends on the operating system, but a file-finder can skip file entries or see the same entry more than once ... a problem that is neatly avoided by completely scanning, say, a particular directory, then processing that list before moving on to the next one. (I have not looked closely at Perl's implementation of file-finders, but in other languages I noticed them doing this internally, and wondered why they did it that way.) Particularly if you are inserting, deleting, or renaming entries in the designated container, this approach can avoid a lot of messy problems.

In reply to Re^3: How to open file inside loops with file names generated using an array? by Anonymous Monk
in thread How to open file inside loops with file names generated using an array? by skooma

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