readdir returns file names without directory paths. You're probably not in C:/dir, so you need to give your files absolute paths or change to that directory.

use File::Spec;
my @files = map { File::Spec->catfile( 'c:/dir', $_ ) }
    grep { ... } readdir DIR;

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In reply to Re: Deleting Files by chromatic
in thread Deleting Files by LeeC79

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