From what I see, @goodRefDes is an array of references to hash...

Is source code something like this? I'm not sure?:

my @gravity_hashrefs = grep {$_->{CHIPS_PART_NAME}=~/gravity/i} @goodR
+efDes;
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Why not add into the source code:
 use Data::Dumper; at the beginnging of the code?

Then add
 print Dumper \@gravity_hashrefs;?

It is possible to add extra statements into a grep{}.
I think this would work....

grep { if ($_->{CHIPS_PART_NAME}=~/gravity/i)
       {
          print Dumper $_;
          1;
       }
       else 
       { 
          0;
       }          
     } @goodRefDes;
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I am unsure why there is so much fascination with the Debugger when it is so easy to add print statements into Perl and compile and run the result at rocket speed. I seldom need the debugger even when writing "raw" C.