jkeenan1:

...but just in case you were insane enough to create it, it might look something like this:

#!/usr/bin/perl -w
use strict;
use warnings;

sub funky_make_tree {
        my $tree_hr = shift or return;

        for my $dirname (keys %{$tree_hr->{"dirs"}}) {
                print "Creating dir: ", $dirname, "\n";
                mkdir $dirname;
                chdir $dirname;
                &funky_make_tree($tree_hr->{"dirs"}{$dirname});
                print "Done with dir: ", $dirname, "\n";
                chdir "..";
        }

        for my $filename (@{$tree_hr->{"files"}}) {
                print "Creating file: ", $filename, "\n";
                open OUT, '>', $filename or die "ARGH!";
                print OUT $filename, "\n";
                close OUT;
        }
}

my %structure = (
    dirs    => {
        albemarle    => {
            dirs    => {
                chatauqua    => {},
                cattaraugus => {},
            },
            files    => [ qw( washington adams jefferson ) ],
        },
        beverly        => {
            dirs    => {
                ataturk    => {},
                bonaparte => {},
            },
            files    => [ qw( madison monroe jackson ) ],
        },
        cortelyou        => {
            dirs    => {
                peoria    => {},
                paducah => {},
            },
            files    => [ qw( vanburen harrison tyler ) ],
        },
    },
    files    => [ qw( alpha beta gamma ) ],
);

&funky_make_tree(\%structure);
[download]

(Yep, I tested it...)

Update: And I was a bit slower on the draw than Grandpops....

--roboticus