use strict; use List::Compare; my @array1 = qw{ bob larry melon fruit}; my @array2 = qw{ bob larry melon apple}; my array3 = qw{ bob larry fruit apple}; my @comp; push @comp, [@array1]; push @comp, [@array2]; push @comp, [@array3]; my $lc = List::Compare->new( @comp ); my @intersection = $lc->get_intersection;