And then check for keys whose anonymous array has more than one value: 
my @same_value_keys = grep { @{$_} > 1 } 
                        values %ihash;

[download]
where each array element is itself an array of keys with the same value in the original hash.

-QM
--
Quantum Mechanics: The dreams stuff is made of

In reply to Re^2: Getting the keys of identical values in a hash by QM
in thread Getting the keys of identical values in a hash by knsridhar

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