$A = \%a; creates a reference to the hash %a. References are akin to c pointers, but I'd recommend the tutorials and super search for more.

@$A{keys %b} = values %b; sets the list of (keys %b) equal to the list of (values %b) as hash elements of $A, which is a reference to %a.

You may also be interested in the PLEAC - Merging Hashes codes.

HTH

In reply to Re: Hash merging! by eibwen
in thread Hash merging! by jerry.hone

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