The line:

if (@return > 1)
[download]

is evaluating @return in scalar context. And because your $cmd returns just a single line, you are effectively saying:

if (1 >1)
[download]

of course, 1 will never be greater than 1, so you get no output :p
Change it to:

if (@return) {
[download]

Cheers,
Darren :)