I assume you're doing the right thing and using File::Find to find the files in question - then the job can be done at the drop of a hat. The postprocess predicate to find() calls a given sub just before finally exiting a directory. That's all we need - we simply attempt to remove the directory and if there's anything in there, that will just fail harmlessly. It's less work for both us and the computer than if we tried to check manually. 
#!/usr/bin/perl -w
use strict;
use File::Find;

my $max_age_days = 120;

find({
    wanted => sub { unlink if -f $_ and -M _ > $max_age_days },
    postprocess => sub { rmdir $File::Find::dir },
}, @ARGV);

[download]

Makeshifts last the longest.

In reply to Re^3: delete dir if empty on nt by Aristotle
in thread delete dir if empty on nt by mcudmore

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.