Hello Everyone,
Please see following code:

 sub Clear{
    my $item=$_[0];
    $item=~s/^\s+//;
    $item=~s/\s+$//;
    return $item;
}

sub Txn_Extract{
    my $name_of_file=$_[0];
    my $hash_ref=$_[1];
        $hash_ref=Clear($hash_ref);       #Here something goes wrong. 
+When I remove this line %DATA_HASH gets populated properly. Need to k
+now what happens when I clear the $hash_ref variable with above sub C
+lear.
    my @row;
.
..
.
.
}
sub Main {
       Txn_Extract (file.txt,\%DATA_HASH);
       print Dumper \%DATA_HASH

}

[download]

OUTPUT: VAR{}

In reply to Understand why dumper printed null hash by Anonymous Monk

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