on what you mean by "MySQL directory", and possibly on the RH version.
To see the location of the file that executes when you invoke MySQL do a "which MySQL" from a shell prompt. That gets me a response of /usr/bin/mysql on both my RH 7.3 server and on my RH 8.0 workstation.
Try "more /etc/my.cnf" to see where key files are for MySQL. Databases are under /var/lib/mysql for both my RH boxes, as that is defined in the my.cnf file as the "datadir".
I believe that you can export the data, but don't recall specifics. You might consider using ODBC to access MySQL databases with Access. I believe that there is a "MyODBC" that allows this. Probably you can find info on it at www.mysql.com.