Yasu

Yasu was originally created with System Administrators who service large groups of workstations in mind, Yasu (Yet Another System Utility) was made to do a specific group of maintenance tasks quickly within a few clicks, rather than needing to endlessly type shell script commands in the Terminal application.
Yasu allows system administrators, as well as the average user, to conveniently run various system level Unix shell scripts in order to perform maintenance routines and clear the many cache files used by OS X.

Yasu was designed to be a simple, first line of attack for a workstation that has started "acting up." More often than not, a thorough purge of the cache files of a Mac will bring its behavior back into line.Yasu ("Yet another system utility") is a small program that lets you perform several tweaks which will help you optimize your system's performance. Although you can find plenty of more advanced applications from the same category on the market, this tool is worth trying as it is able to resolve some crucial issues that your Mac can encounter. For example, it can clear cache of the used files.

An advantage of this small tool is that you no longer need to enter commands within the Terminal app. The program offers you a GUI interface as an alternative for manual command typing that greatly simplifies Mac optimization tasks.

You can easily clear the system cache, reset system permissions, remove cookies, delete application logs, and much more. Once you finish selecting the tasks you wish to complete, click the OK button, and that's it: the program will get the job done.

Unfortunately, you might have to wait a while for Yasu to complete its work. Moreover, after all procedures, the application automatically restarts or shuts down your Mac (it depends on the option you select - restart or shut down). Therefore, you should finish your background tasks before this occurs.

Briefly, Yasu is a simple yet effective program that offers you an easy way to optimize the performance of your system. However, there are more advanced programs on the market that also let you check the S.M.A.R.T. status, run custom scripts or remove problematic folders.