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  1. or download this
    #! perl
use strict;
...

printf "\$ref1 is a %s\n", ref $ref1;
printf "\$ref2 is a %s\n", ref $ref2;
  2. or download this
     0:52 >perl 879_SoPW.pl
$ref1 is a HASH
$ref2 is a HASH

 0:52 >