There is perl's glob, or else there is File::Find.

With glob,

open CONF, '/path/to/.config' or die $!;
while (<CONF>) {
    my ($fglub, %mto) = split;
    for (glob $fglub) {
        -M < $mto and next;
        # do stuff to an out of date file
    }
}
close CONF or die $!;
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After Compline,
Zaxo