Check the FAQs for "list" - "perldoc -q list" can help.

my @l1 = qw(education production results);
my @l2 = qw(education joe bob carl production steve results tests);
my %h1; undef @h1{@l1};
my @o2 = grep { not exists $h1{$_} } @l2;

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In reply to Re: splitting a list by Tanktalus
in thread splitting a list by ChuckularOne

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