Hi, You could treat the hash as an array and modify the key with something like: 
%hash = map { s/^key1$/new_key2/; $_; } %hash;

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However, I'm not sure I would recommend it, as I don't think it makes what you are trying to do any clearer, and it has the potential to modify values that also match the regex!

In reply to Re: Modifying the keys in a hash by sluap
in thread Modifying the keys in a hash by Mandrake

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