This Wiley Publishing tome is big (more than 650 pages), useful and very complete. Be warned, however, that its scope is limited to system administration. The purpose of the book is to solve “real ...

Linux Journal, representing 25+ years of publication, is the original magazine of the global Open Source community.

Shell scripting is a lot more powerful than many people realize. With the right commands, shell scripting can automate many ...

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 ...

Shell scripting is one of those skills that are absolutely invaluable on especially UNIX and BSD-based systems like the BSDs, the two zillion Linux distributions as well as MacOS. Yet not every shell ...

#!/bin/bash clear echo "Hello world!" The first line tells the operating system what shell to use to interpret the script and the location of the shell. Double quotes do not prevent Bash from ...

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 ...

An associative array is an array which uses strings as indices instead of integers. To see how associative arrays work, we’re going to look at both the Korn shell and Perl, though only the newest ...