Couple of follow-up questions: 1. Could you please explain what the following snippet does? 
     my $p = \\%hash;
     $p = \(${$p}->{$_}) for @elts;
     $$p = $val;

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2. Is there a quick/easy way to change the key of a hash? Apologies if I'm breaking a rule here (double/cross-posting)...

In reply to Re^4: read flat file and build tree-like structure by manav_gupta
in thread read flat file and build tree-like structure by manav_gupta

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