I like (and prefer and often do) this way: 
my @str = qw(aaa bbb ccc ddd eee ddd aaa bbb ccc);
my %uniq = ();
my @uniq_str = grep { ! $uniq{$_}++ } @str;

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In reply to Re: how to remove duplicate strings? by holcapek
in thread how to remove duplicate strings? by heidi

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