What Kind of Maintenance Do I Need to Do on My Windows PC?

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http://lifehacker.com/5815256/what-kind-of-maintenance-do-i-need-to-do-on-my-windows-pc

Coding For UNIX

The popular UNIX® operating system is almost like a huge, uncharted desert. When you traverse the area, you can pick up tools that will help you. These tools help in making full use of the powerful command line interface of UNIX.

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http://designreviver.com/tips/a-collection-of-little-known-coding-for-unix