What is a general greeting that people use in place of "good morning," "good afternoon," and "good evening" in some of the spanish-speaking countries? ¿qué tal? mucho gusto ¡buenas! un placer

¡Buenas!

Explanation:

Buenas is a greeting in spanish that is often used in place for all of the options Good Morning, good afternoon and good evening, that expression "Buenas" would be like a howdy or something of the sort, just a greeting and a farewell for whoever you are saying hi at the street.