I cant get my mysql to start on os x 10.7. It is located in /usr/local/mysql/bin/mysql
/usr/local/mysql/bin/mysql
I get command not found when I type mysql --version
mysql --version
Maybe I'll help someone else. None of the above answers worked for Catalina. Finally, this solved the problem
echo 'export PATH="/usr/local/opt/mysql@5.7/bin:$PATH"' >> /Users/$(whoami)/.bash_profile
Of course, you have to change for the version of mysql you have installed