If you're not yet comfortable with writing scripts on Unix and Linux systems, this post might get you off to a healthy start. Creating a script on a Unix or Linux system can be dead easy or ...

Bash scripts are powerful, but with power comes great responsibility. It’s very easy for sloppy or poorly-planned code to do real damage, so it’s a good idea to be careful and practice defensive ...

Using RH7.0, I've set up a bash script called 'dlist' which is just an 'ls' with the '-s and -h' switches appended. This gives you your normal ls output, with total size of the directory contents and ...

Few aspects of Unix system administration are more intimate than the relationship between the admin and their chosen shell. After all, the shell is the most fundamental interface to the system, the ...

There was a time when embedded system developers didn’t need to worry about graphics. When you have a PIC processor and two-line LCD, there isn’t much to learn. But if you are deploying Linux-based ...

In our first tutorial on command line wizardry, we covered simple redirection and the basics of sed, awk, and grep. Today, we’re going to introduce the concepts of simple variable substitution and ...

It is easy to dismiss bash — the typical Linux shell program — as just a command prompt that allows scripting. Bash, however, is a full-blown programming language. I wouldn’t presume to tell you that ...

Linux offers more freedom than other operating systems, but you’ll need a bit of technical know-how to maximize its potential. If you’re interested in learning about the powerful and sleek operating ...

Although Linux receives a lot of praise as a rock-solid server and, recently, as an up-and-coming desktop, games have never been its strong suit. Sure, we all have our favorite diversions; I've spent ...