Ramble Around the UNIX File System
Many directories in the UNIX file system serve a special purpose, and certain directories are named per long-standing convention. In this installment of the "Speaking UNIX" series, discover where UNIX stores important files.

The Unix Shell - Part One
The word Unix has traditionally brought to mind images of a mystical operating system for high-end workstations and servers that can only be accessed through a cryptic command line interface known as the Unix Shell. Although Linux offers graphical front ends, the Unix Shell is still a powerful tool that can make life easier for anyone who is willing to invest a bit of time learning the basic syntax.

The Unix Shell - Part II
At first glance many people think the Unix Shell is a more cryptic version of the MS-Windows/DOS command prompt. However, the Unix shell can do much more than launch programs and copy files. Sequences of commands can be strung together in "Shell Scripts" to automate tedious or repetitive tasks.

Unix Tips and Tricks: Filters and Regular Expressions
Discover the power of UNIX filters. In this tutorial, you'll learn about the grep family in depth, including the syntax of regular expressions in many UNIX utilities. You'll also find out more about the stream editor, sed, as well as examine the awk pattern scanning language through examples and explanations.

Programming between native z/OS and zOS UNIX Systems Services
Although programming between USS and traditional z/OS still remains a mystery for most programmers, this article will fill in the gaps. It explains to native z/OS programmers how to benefit from UNIX on z/OS, and shows UNIX programmers how to interact with traditional z/OS.

Avoid common errors in UNIX and Linux
This article explains UNIX and Linux errors and provides workarounds and resolutions to them that may crop up. Discover the most common errors in UNIX and Linux and how to avoid them. This is a very good Troubleshooting clinic tip sheet to keep handy.

Speaking UNIX: More shell scripting techniques
How could someone make a more powerful editing tool than vi, you may ask? The answer is Vim, and this article provides details on the many enhancements that have made Vim a highly used and acceptable editor in the world of UNIX and Linux.

Building UNIX Software from Source Code
If your UNIX system lacks a tool you need, chances are you can find an apt solution in the enormous inventory of software available online. This month, learn how to build software from source code.

IBM Data Studio Admin for DB2 for Linux, UNIX
Download IBM Data Studio Administrator for DB2 for Linux, UNIX, and Windows V1.2. Data Studio Administrator improves database administrators' (DBAs') productivity and reduces application outages by automating and simplifying complex DB2 structural changes.

The importance of UNIX in SOA environments
Discover how and why existing systems and applications with which you are already familiar deployed on operating systems that you know well are so critical to the present and future of Web-based computing, particularly in the area of SOA.

Distributed administration using SSH
Use Secure Shell (SSH) to run commands on remote UNIX systems and, with some simple scripts, put together a system that enables you to manage many systems simultaneously from one machine without having to log in directly to the machines themselves.

Introduction to working in the bash shell
This tutorial provides a brief history of Bash, which indicates how the Bash shell is different than some of the other popular UNIX shells, and also provides an overview of the major features available within Bash.

Tcsh shell variable manipulation
Tcsh is one of the most popular UNIX shells. Learn how you can use tcsh shell variables to make your work easier and how to take advantage of tcsh's advanced security features.

Secure Your Mac From Harmful Viruses
Up until quite recently, a Macintosh user was able to remain mostly free from harmful worms and viruses on their computers This is partially because of the fact that as Mac OS X is Unix-based, the operating system is relatively secure against such attacks

Remote Serial Console HOWTO
Most UNIX-based systems have the concept of a serial console. Linux is no exception to this, and this document by Mark F. Komarinski covers how to set up your hardware to use a serial console.