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  1. or download this
    $ perl -e 'use Data::Dumper;{my @a=(0..10);$b=\@a} print Dumper $b'
$VAR1 = [
...
          9,
          10
        ];
  2. or download this
    $ perl -e 'use Data::Dumper;{my @a=(0..10);my $b=\@a} print Dumper $b'
$VAR1 = undef;
  3. or download this
    $ perl -e 'use Data::Dumper;{my @a=(0..10);local $b=\@a} print Dumper 
+$b'
$VAR1 = undef;
  4. or download this
    $ perl -e 'use Data::Dumper;{my @a=(0..10);our $b=\@a} print Dumper $b
+'
$VAR1 = [
...
          9,
          10
        ];