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  1. or download this
    open my $fh, '<', 'C:\ppp.txt', or die "Could not open file $!";
        while (my $line = <$fh>) 
    ...
            }        
        }
    
  2. or download this
     open my $fh, '<', 'C:\ppp.txt', or die "Could not open file $!";
    if ($fh contains an empty file)
    ...
     // then add this the $address in the ppp.txt's first line
    }