While it does not directly answer your question, I wanted to comment on style. In general, using variable names like this:

[$hardware1, $hardwareValue1],
[$hardware2, $hardwareValue2],
[$hardware3, $hardwareValue3],
[download]

is a bad idea. See Why it's stupid to use a variable as as a variable name for more information.

You can use arrays, hashes, or some combination thereof to accomplish the same thing, and your data structures will be much more robust. For example:

# array
my @hardware;
$hardware[1] = 'whatever';

# hash
my %hardware;
$hardware{1} = 'whatever';

# hash of hashes
my %hardware;
$hardware{1} = { hw => 'whatever', value => 'somevalue' };

# hash of arrays
my %hardware;
$hardware{1} = [ 'whatever', 'somevalue' ];

# array of arrays
my @hardware;
$hardware[1] = [ 'whatever', 'somevalue' ];

# array of hashes
my @hardware;
$hardware[1] = { hw => 'whatever', value => 'somevalue' };
[download]

See perldsc for more information on complex data structures.

HTH