You can also use a hash slice. 
%tmphash = map { split /X/ } "fooXbar", "bishXbash";
@hash{keys %tmphash} = values %tmphash;

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In reply to Re: Assign (key, value) to a hash w/o clobbering hash by ikegami
in thread Assign (key, value) to a hash w/o clobbering hash by Melly

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