Untested and unnecessary verbose, but I think you'll get the idea:

use strict;
use warnings;

my @arr1 = ("John, ABC, 42","Jane, XYZ, 34","Jessica, GHI, 21");
my @arr2 = ("ABC", "XYZ");
my @arr3;
my %seen;
foreach my $arr1(@arr1) {

    my @splitted = split (/,/, $arr1);
    foreach my $arr2(@arr2) {
        if (grep(/$arr2/, @splitted)) {
            unless ($seen{$arr1} ){
                push (@arr3, $arr1);
            }
        }
    }
}

for (@arr3) {print "$_\n";}

[download]

I'm too lazy to be proud of being impatient.

In reply to Re: Deleting elements of one list using another by nemesdani
in thread Deleting elements of one list using another by Sj03rd

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