The module in CPAN don't give an example of how to do this

Well, it would be too much to expect from every CPAN module that uses hashes to explain to the user to access a hash.

Try something like:

foreach my $process (@info) {
    while (my ($k, $v) = each %$process) {
        print "$k => $v\n";
    }
    print "\n";
}
[download]

Or use your favourite serializer.