Labrador Retriever

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. This reference 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.