not sure what you're doing in the sorting of $k2, the following seem to be what you want (not tested): 
my $rHash = \%hash;
for my $k1 = (sort keys %$rHash) #outer key, this works
{
  for my $k2 (sort {$a <=> $b} keys %{$rHash->{$k1}}) )
  {
    #display miscellaneous
    print $k1 $k2;
  }
}

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In reply to Re: sorting hashes by johnnywang
in thread sorting hashes by olecs

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