$ ./sql 'select * from descuentos where categoria="CF"'
+---------+-------+-----------+-------+-------+
| id      | grupo | categoria | medio | dto   |
+---------+-------+-----------+-------+-------+
| 4512495 |   119 | CF        |     1 | 10.00 |
| 4512496 |   119 | CF        |     2 | 10.00 |
+---------+-------+-----------+-------+-------+
                                          ^------- need to put this thing

$ ./sql 'select id, presea_grupo_dto, dto_promocional_cf from productos where presea_grupo_dto=119'
+------+------------------+--------------------+
| id   | presea_grupo_dto | dto_promocional_cf |
+------+------------------+--------------------+
| 4791 |              119 |               0.00 |
+------+------------------+--------------------+
                                           ^--------- here