typo apart, what is dirty and ugly about it

IMHO:

• The comment signs on empty lines are ugly
• The spaces before semicolons are ugly
• 2-column indent is ugly
• Calling subs as &sub is ugly and often simply wrong

And even,

open ... or do {
    #blah blah blah
};
[download]

is more ugly than

unless (open...) {
    #blah blah blah
}
[download]

Perl syntax is very flexible. It even allows to write the whole your program in one long line. But i recommend you to follow the more common coding standarts :) They are described, e.g. in perlstyle.