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  1. or download this
    >perl -c -we"sub outer { my $x; sub inner { $x } inner() }"
    Variable "$x" will not stay shared at -e line 1.
    ...
    
    >perl -c -we"sub outer { my $x; local *inner = sub { $x }; inner() }"
    -e syntax OK
    
  2. or download this
    sub outer {
      ...
    ...
      };
      ...
    }