精通Bash 4.0专业编程:GNU/Linux Shell脚本指南

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"《Pro Bash Programming》是一本专业的shell编程教材,专注于GNU/Linux系统的Bash 4.0脚本编程。作者Chris F. A. Johnson以其深厚的专业背景,从基础的一行命令开始,逐步引导读者提升到编写复杂、高效的程序。本书详尽地介绍了Bash语言的各个方面,包括其特性、语法、函数、流控制、文件操作、错误处理以及高级主题,如参数传递、模块化编程和调试技术。 书中的内容涵盖了Bash 4.0的所有关键功能,确保读者能够跟上最新版本的技术更新。作为一本深入的指南,它不仅适合初学者学习和理解shell编程的基本概念,也对经验丰富的开发者提供了实用的工具和最佳实践。书中还包含了版权信息,强调所有内容未经许可不得复制或传播,体现了对知识产权的尊重。 《Pro Bash Programming》的特点在于其严谨的教学方法和实用性,通过实例和案例,帮助读者掌握如何从简单的命令行操作到编写专业的脚本程序。此外,书中还特别提到了编者Frank Pohlmann的技术指导,确保了内容的专业性和技术准确性。 对于那些在Linux系统中寻求高效管理、自动化任务或者希望深入了解Bash shell的IT专业人士来说,这本书是不可或缺的参考资料。无论是日常维护,还是开发定制化的脚本工具,都能从中找到宝贵的知识和技巧。无论你是新手还是资深开发者,这本书都能助你在Bash的世界里游刃有余。"
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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 What you'll learn * 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 bash's 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. Who this book is for Beginning Linux and Unix system administrators who want to be in full command of their systems. Table of Contents * Hello, World! Your First Shell Program * Input, Output, and Throughput * Looping and Branching * Command-Line Parsing and Expansion * Parameters and Variables * Shell Functions * String Manipulation * File Operations and Commands * Reserved Words and Builtin Commands * Writing Bug-Free Scripts and Debugging the Rest * Programming for the Command Line * Runtime Configuration * Data Processing * Scripting the Screen * Entry-Level Programming