Works for me:

$ mkdir foo bar
$ touch bar/1
$ touch bar/2
$ touch bar/3
$ touch foo/4
$ touch foo/5
$ touch foo/6
$ mkdir -p bar/tze
$ touch bar/tze/7
$ touch bar/tze/8
$ touch bar/tze/9
$ perl -w 651889.pl | sort | uniq -c
      1 ./651889.pl
      1 ./bar
      1 ./bar/1
      1 ./bar/2
      1 ./bar/3
      1 ./bar/tze
      1 ./bar/tze/7
      1 ./bar/tze/8
      1 ./bar/tze/9
      1 ./foo
      1 ./foo/4
      1 ./foo/5
      1 ./foo/6
[download]

I'd rather use File::Find:

$ perl -wle 'use strict; use File::Find; find(sub { print if -f }, "."
+);'
651889.pl
1
3
2
8
7
9
6
5
4
[download]

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