The awnsor Richie gave wasn't clear to me so I spend some time debugging. I got it to work on my own site by removing the > so that it would read:

my $save_dir = "/home/dir/";

It might be wise to print the variables you are using at different stages so you can see what they read. That is how I saw that ${save_dir} had the > in it's value. And some die's wouldn't be bad either. Greetings Olly

Imagination is more important then knowledge -Einstein-