MySQLTuner is a script written in Perl that allows you to review a MySQL installation quickly and make adjustments to increase performance and stability.  The current configuration variables and status data is retrieved and presented in a brief format along with some basic performance suggestions.

https://github.com/major/MySQLTuner-perl

wget https://raw.github.com/major/MySQLTuner-perl/master/mysqltuner.pl
chmod +x mysqltuner.pl