Help for this page
@union = ((SDT,`1781183799.44927\',-----),
@union = (['SDT','1781183799.44927\','-----'], ['BN','1781183799.44972\','-----'], ['BNN','1781183799.46753\','-----']);
my @diff; my @inter ... push @{ $count2{$element}{COUNT} > 1 ? \@inter : \@diff }, $count2{$ +element}{ELEMENT}; }; print Dumper(@diff),"\n";