Thank you philiprbrenan.

But for %h2, the keys are supposed to be values in %h1

i.e the keys for %h2 are:

1.1.1

1.1.2

1.1.3

1.2.1

1.2.2

1.2.3

For each of the key, e.g 1.1.1, it would have different values in %h2: e.g.:

1.1.1=> qw(3.3.1,3.3.2,3.3.3)

1.1.2=> qw(4.4.1, 4.4.2, 4.4.3)

1.1.3=> qw(5.5.1, 5.5.2, 5.5.3)

1.2.1=> qw(6.6.1, 6.6.2, 6.6.3)

1.2.2=> qw(7.7.1, 7.7.2, 7.7.3)

1.2.3=> qw(8.8.1, 8.8.2, 8.8.3)

so the end results i desire would be:

key1=>qw(3.3.1,3.3.2,3.3.3, 4.4.1, 4.4.2, 4.4.3, 5.5.1, 5.5.2, 5.5.3)

key2=>qw(6.6.1, 6.6.2, 6.6.3,7.7.1, 7.7.2, 7.7.3,8.8.1, 8.8.2, 8.8.3)

That is that the keys from %h1 will have values from %h2.