* Covering the most popular Linux shells (such as bash, ash, tcsh, ksh, korn, and zsh), this reference shows how to use commands to create scripts within each shell and demonstrates practical applications for shell scripts (including retrieving information from Web sites and sending automated reports via e-mail)
* For each shell, the author discusses the commands available and explains how to use these commands to create scripts that can automate common functions and reports
* Guides administrators through advanced projects for using shell scripts in real-world applications and features advanced topics such as using a database and Web programming

There's a lot to be said for going back to basics. Not only does this Bible give you a quick refresher on the structure of open-source Linux software, it also shows you how to bypass the hefty graphical user interface on Linux systems and start interacting the fast and efficient way—with command lines and automated scripts. You'll learn how to manage files on the filesystem, start and stop programs, use databases, even do Web programming—without a GUI—with this one-stop resource.

* Understand the Linux desktop and various command-line parameters
* Learn filesystem navigation, file handling, and the basics of bash shell commands
* Write shell scripts to automate routine functions and reports
* Harness nesting loops and structured commands
* Monitor programs, master file permissions, and make queries
* Run scripts in background mode and schedule jobs
* Use sed, gawk, and regular expressions
* Explore all alternate shells, including ash, tcsh, ksh, korn, and zsh