Pro Bash Programming: Scripting the Linux Shell

The bash shell is a complete programming language, not merely a glue to combine external Linux commands. By taking full advantage of shell internals, shell programs can perform as snappily as utilities written in C or other compiled languages. And you will see how, without assuming Unix lore, you can write professional bash 4.0 programs through standard programming techniques.

• Complete bash coverage
• Teaches bash as a programming language
• Helps you master bash 4.0 features

• Use the shell to write new utilities and accomplish most programming tasks.
• Use shell parameter expansion to replace many external commands, making scripts very fast.
• Learn to avoid many common mistakes that cause scripts to fail.
• Learn how bashs readline and history libraries can save typing when getting user input.
• Learn to use features new to bash 4.0.
• Build shell scripts that get information from the Web.

Beginning Linux and Unix system administrators who want to be in full command of their systems.