Howdy! 

my %first = map { $_ => 1 } @arr2;
@result = grep !exists $first{$_}, @arr1;

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%first is a hash whose keys are the distinct values in @arr2. The grep returns a list of the values in @arr1 that don't exist in %first, thus eliminating values in @arr2.

yours,
Michael

In reply to Re: Grepping on array by herveus
in thread Grepping on array by hotshot

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