本书在一开始就给出一个概述和指南，论述了从grep到sed再到awk不断改进的功能。sed和awk具有相同的命令行语法，以脚本的形式接收用户的命令。因为所有这三个程序都使用UNIX正则表达式，因此书中用一章的篇幅来介绍UNIX的正则表达式语法。 然后，本书介绍如何编写sed脚本。从编写几行简单的脚本开始，学习进行手工编辑操作的其他基本命令和高级命令，以及由此引入的简单程序结构。这些高级命令包括用于处理保持空间、即一个等量齐观时缓冲区的命令。

本书在一开始就给出一个概述和指南，论述了从grep到sed再到awk不断改进的功能。sed和awk具有相同的命令行语法，以脚本的形式接收用户的命令。因为所有这三个程序都使用UNIX正则表达式，因此书中用一章的篇幅来介绍UNIX的正则表达式语法。 然后，本书介绍如何编写sed脚本。从编写几行简单的脚本开始，学习进行手工编辑操作的其他基本命令和高级命令，以及由此引入的简单程序结构。这些高级命令包括用于处理保持空间、即一个等量齐观时缓冲区的命令。

sed & awk describes two text processing programs that are mainstays of the UNIX programmer's toolbox. The book lays a foundation for both programs by describing how they are used and by introducing the fundamental concepts of regular expressions and text matching. This edition covers the sed and awk programs as they are mandated by the POSIX standard. It also includes a di...(展开全部)

sed & awk describes two text processing programs that are mainstays of the UNIX programmer's toolbox. The book lays a foundation for both programs by describing how they are used and by introducing the fundamental concepts of regular expressions and text matching. This edition covers the sed and awk programs as they are mandated by the POSIX standard. It also includes a di...(展开全部)

The sed & awk Pocket Reference is a companion volume to sed & awk and Unix in a Nutshell. This small book is a handy reference guide to the information in the larger volumes, presenting a concise summary of regular expressions and pattern matching, and summaries of sed and awk.

The sed & awk Pocket Reference is a companion volume to sed & awk and Unix in a Nutshell. This small book is a handy reference guide to the information in the larger volumes, presenting a concise summary of regular expressions and pattern matching, and summaries of sed and awk.

This is a reference guide to the information presented in the larger volumes. It presents a concise summary of regular expressions and pattern matching, and summaries of Sed and Awk. This edition has expanded coverage of Gawk (GNU Awk), and includes sections on: an overview of Sed and Awk's command line syntax; alphabetical summaries of commands, including Nawk and Gawk; profil...(展开全部)

This is a reference guide to the information presented in the larger volumes. It presents a concise summary of regular expressions and pattern matching, and summaries of Sed and Awk. This edition has expanded coverage of Gawk (GNU Awk), and includes sections on: an overview of Sed and Awk's command line syntax; alphabetical summaries of commands, including Nawk and Gawk; profil...(展开全部)

This book is for developers or analysts who are inclined to learn how to do text processing and data extraction in a Unix-like environment. Basic understanding of Linux operating system and shell scripting will help you to get the most out of the book.

This book is for developers or analysts who are inclined to learn how to do text processing and data extraction in a Unix-like environment. Basic understanding of Linux operating system and shell scripting will help you to get the most out of the book.