Efficently?
Not sure ;)

my %h = 
map{ reverse /(\d+).*#(.+)/ } grep "@array1", @array2;
print Dumper \%h;

[download]
Output:
$VAR1 = {
          'def' => '890',
          'abc' => '15',
          'ghi' => '78'
        };

[download]

hth,
PooLpi

'Ebry haffa hoe hab im tik a bush'. Jamaican proverb

In reply to Re: checking the matches by poolpi
in thread checking the matches by tweetymonk

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