What Is Yasu?

Created with System Administrators who service large groups of workstations in mind, Yasu (Yet Another System Utility) is a Mac OS X maintenance utility that has been developed to do a specific group of tasks quickly within a few clicks, rather than needing to endlessly type shell script commands in the Terminal application.

What Yasu Does
Yasu is a “Universal Binary” Macintosh utility built using AppleScript Studio that allows system administrators, as well as standard users, 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.

What Yasu Doesn’t Do
Yasu is not a solution for total system maintenance, and is not a replacement for the Unix ‘cron’ or ‘launchd’ daemons. While Yasu works quite well on its own for certain things, it should be used in conjunction with other utilities, such as DiskWarrior or TechTool Pro, in order to keep your system in optimal health.

So What’s The Difference?
One of the questions I get asked most is “Why should I use Yasu instead of one of those other utility applications?” It’s a very legitimate question. There are several similar utilities to choose from that do the same things as Yasu, and then some. But that’s just it, sometimes that “then some” is way too much for the average user. Tweaking some obscure Finder setting really doesn’t matter when it comes to keeping your Mac healthy. I intentionally developed Yasu to only contain the tasks that are most crucial to maintaining system health — and all in one window. Tasks aren’t spread out across several tabs for a user to switch back and forth between. Instead, each task is right there to be selected in one window, ready to be run when you say go. Less really is more in this case.
Using Yasu

Once selecting which options you want to run and hitting the return key, if you’re logged in as an administrator, you’ll be prompted with an authentication dialog. Enter the password for the current administrator account and click “Okay” (or hit the “Return” key). If you are logged in as a non-admin level account, you’ll only be allowed to perform the standard user options. Additionally, no authentication dialog will appear when you click “Run” (or hit the “Return” key).