pl-sql transfer multiple dumps over dblink

transfer.sql

BEGIN
FOR loop_counter IN 1 .. 7
LOOP
    dbms_output.put_line('EXPDAT' || LPAD(loop_counter, 2, '0') || '.DMP');
    DBMS_FILE_TRANSFER.PUT_FILE(
        source_directory_object       => 'DATA_PUMP_DIR',
        source_file_name              => 'EXPDAT' || LPAD(loop_counter, 2, '0') || '.DMP',
        destination_directory_object  => 'DATA_PUMP_DIR',
        destination_file_name         => 'EXPDAT' || LPAD(loop_counter, 2, '0') || '.DMP', 
        destination_database          => 'to_rds' --dblink
    );
END LOOP;
END;
/