Don't mind if I chip in myself. (plaid's approach doesn't take into account the possibility of a non-UNIX platform...) 
sub process_file {
    open F, shift;
    # ...do stuff with F...
    close F;
}

sub recurse_dir {
    opendir D, shift;
    while (readdir D) {
        process_file ($_) if -f;
        recurse_dir  ($_)  if -d;
    }
    closedir D;
}

recurse_dir ($ARGV[0]);

[download]
Two comments: first, I'm not sure if that's what the OP wanted at all. It's a rather useful idiom nonetheless. Second, this would have been a much more elegant solution had I made recurse_dir receive a subref and return a closure that recursively applied this subref to each file (as one would do in Scheme, e.g.). Unfortunately, this causes serious scope issues, especially if one chooses to use strict;

In reply to Re: How do I read all files in a directory recursively? by Anonymous Monk
in thread How do I read all files in a directory recursively? by Anonymous Monk

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