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perl -MData::Dumper -e "@arr=['a','b']; print Dumper (\@arr)"
$VAR1 = [
...
          ]
        ];

perl -MData::Dumper -e "@arr1=qw(a b);@arr2=qw(c d);foreach (@arr1,@ar
+r2){print qq([$_]\n) }"
[a]
...
[c]
[d]