Did you check that one. 
@hash{keys %hash}=0 x scalar(keys %hash);

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I gave me the following output as , 
$VAR1 = {
          'c' => '000',
          'a' => undef,
          'b' => undef
        };

[download]
I want all the values of hash to '0'.

In reply to Re^4: re-initialize the hash by vennila
in thread re-initialize the hash by vennila

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