I generally do it this way too, but I check all keys that are in both. Something like: 

my %union = ( %hash1, %hash2 );
my @keys = sort keys %union;
undef %union;

foreach my $key ( @keys ) {
   if ( ! exists $hash1{$key} ) {
      print "key $key is not in hash 1\n";
   } elsif ( ! exists $hash2{$key} ) {
      print "key $key is not in hash 2\n";
   }
   ....

[download]

- doug

In reply to Re^2: How best to compare hash values? by doug
in thread How best to compare hash values? by jimbass

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