This line:

 $hash{$key_CSV} = \@array_CSV;

Is causing your most immediate problem. You are storing the reference to the array in your hash elements. So when you print out the hash elements, you are getting a reference to an array.

In reply to Re^3: read hash table from a subroutine or retrieve previously stored hash table from a file by marinersk
in thread read hash table from a subroutine or retrieve previously stored hash table from a file by waytoperl

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