Look at methods for determining disk usage across multiple UNIX® systems and how to create a simple warning system to alert you of potential problems. Keeping an eye on your file systems and ensuring they don't fill up is a trivial, but ital process in the day-to-day management of your UNIX systems.

Ubuntu, Kubuntu, Xubuntu, Edubuntu.... the talk of the Internet has been revolving around all the new *buntu flavours since version 9.10 finally started showing up on download servers last Thursday. But while the choice is always good, the number of variants can be confusing, especially for those who are new to the world of Linux.

Detailed and proper documentation of source code and programs is the milestone of Unix culture, as we may read in “The art of Unix Programming” by Eric Steven Raymond. The first application on Unix was the platform to prepare documents. The platform was used by Bell Labs to prepare patent documents.

Finding maximal unique substrings within strings or lists.

The World Wide Web Consortium (W3C) draft for a "System Information API" specifies JavaScript functions for accessing the battery, CPU, sensors and other hardware characteristics of a device. For this purpose, the window.navigator object's SystemInfo interface has to implement the get, set and watch methods.

Examine how to use the Network Information Service (NIS) to share core databases between Linux® and UNIX®, and how to use the Network File System (NFS) to share file systems, both with direct links and through the automounter.

As a consultant, I am often faced with an unfamiliar Linux system (usually RHEL). I always find it useful to understand which files that shipped with rpm packages have been modified, since it's usually a good indicator of what customizations have been performed on the system. To determine the modified files, I simply run...

If you are developing a UNIX® application, then you can trace and debug the running application and extract the information you need from it.

That has emerged as the question, or at least a major factor in determining whether open source software works in the enterprise systems management market.