(OP here) God, I knew it was something stupid and obvious like that! But why on earth would Perl not return an error when opening (not opendiring) a directory? Aargh. Thank you (both) for this. This task doesn't require any fancy tree-walking, the directory will just be a flat folder with files in it, so this is pretty much all I need for this purpose.

In reply to Re^2: "readdir() attempted on invalid dirhandle" error? by Anonymous Monk
in thread "readdir() attempted on invalid dirhandle" error? by Anonymous Monk

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