Hello Monks, I would want to merge two hashes, and then update the 1st hash keys with the 2nd hash values of the non-unique keys. To be clear..

%hash1 = ( a, b, c, d, e, f );
%hash2 = ( a, J, e, K );

use Data::Dumper;
print Dumper ( \%hash1 );
print Dumper ( \%hash2 );

# WHAT TO DO HERE TO GET UPDATED VALUES ??

print "=========AFTER===========\n";
print Dumper ( \%hash1 );
#print Dumper ( \%hash2 );
[download]

Output should be like...

$VAR1 = {
          'e' => 'f',
          'c' => 'd',
          'a' => 'b'
        };
$VAR1 = {
          'e' => 'K',
          'a' => 'J'
        };
=========AFTER===========
$VAR1 = {
          'e' => 'K',
          'c' => 'd',
          'a' => 'J'
        };
[download]

I had the following ways of doing it...

• Going through each keys in hash1, and updating it with the hash2 keys value. Using FOREACH, or some other looping.
• Using this single statement as

  %hash1 = ( %hash1, %hash2 );
  [download]

The first way seems promising as i have the requirement of only the first hash keys remain as it is, where as the 2nd way shown here will put the 2nd hash sets unique keys also into the 1st hash.

Question is
I would not want to run over all the hash keys and then do this operation ?! Do you have any single liner, or some statement which can do this operation smarter ?

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