Reinstall error

[Rob Snow]

I reinstalled my entire system and then reinstalled mysql again. Making 
sure I went through the correct set-up this time.
I have set a root password and now when I go to /usr/local/mysql and 
type in mysql -u root -p it says that mysql is not a found command.

What do I do, can I completely uninstall it or reset the password for 
the database, or run through the installation again without issues?

Please help

Very frustrated user!!

Rob Snow