You probably want keys in here:

print "\nDelete children of $test :\n";
foreach $key (%index) {

[download]

That said, the sort loop won't do anything especially interesting to the loop body. The while construct is a little dodgy, as modifying a hash inside an iterator loop can often reset the iterator, effectively making an infinite loop. (Yes, each is an iterator. It grabs one bit of data at a time. foreach keys grabs all of the keys at once.)

In reply to Re: Hashes: Deleting elements while iterating by chromatic
in thread Hashes: Deleting elements while iterating by knexus

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