Synopsis
Bash, the Free Software Foundation's "Bourne Again Shell," is the default shell for Linux, the popular free UNIX-like operating system. It's also a replacement for the standard UNIX Bourne shell, which serves both as a user interface and as a programming language. Like the FSF's other tools, bash is more than a mere replacement: it extends the Bourne shell in many ways. New features include command history, command completion, and many new constructs for the shell programmer. Whether you want to use bash for its programming features or its user interface, you will find Learning the bash Shell a valuable guide. The book covers all of bash's features, both for interactive use and programming. If you are new to shell programming, Learning the bash Shell provides an excellent introduction, covering everything from the most basic to the most advanced features, like signal handling and command line processing. If you've been writing shell scripts for years, it offers a great way to find out what the new shell offers.
From the Back Cover
Learning the bash Shell is the definitive guide to bash, the Free Software Foundation's "Bourne Again Shell". It's a freely available replacement for the popular UNIX Bourne shell. It is also the shell of choice for Linux users around the world. You'll find this guide valuable whether you're interested in bash as a user interface or for its powerful programming capabilities. It will teach you how to use bash's advanced command-line features, like command history, command-line editing, and command completion. Learning the bash Shell also introduces shell programming, a skill no UNIX or Linux user should be without. The book demonstrates what you can do with bash's programming features. You'll learn about flow control, signal handling, and command-line processing and I/O. There is also a chapter on debugging your bash programs. Finally, Learning the bash Shell shows you how to get bash, install it, configure it, and customize it. It also gives advice to system administrators managing bash for their user community.
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