sed and awk Pocket Reference, 2/e
暫譯: sed 與 awk 口袋參考手冊，第2版

For people who create and modify text files, sed and awk are power tools for editing. sed, awk, and regular expressions allow programmers and system administrators to automate editing tasks that need to be performed on one or more files, to simplify the task of performing the same edits on multiple files, and to write conversion programs.

The sed & awk Pocket Reference is a companion volume to sed & awk, Second Edition, Unix in a Nutshell, Third Edition, and Effective awk Programming, Third Edition. This new edition has expanded coverage of gawk (GNU awk), and includes sections on:

• An overview of sed and awks command line syntax
  
• Alphabetical summaries of commands, including nawk and gawk
  
• Profiling with pgawk
  
• Coprocesses and sockets with gawk
  
• Internationalization with gawk
  
• A listing of resources for sed and awk users
  
  

This small book is a handy 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.

Arnold Robbins, an Atlanta native now happily living in Israel, is a professional programmer and technical author and coauthor of various OReilly Unix titles. He has been working with Unix systems since 1980, and currently maintains gawk and its documentation.

Table of Contents    

Introduction  
     
Conventions Used in This Book  
     
Matching Text  

                Filenames Versus Patterns  

                Metacharacters  

                Metacharacters, Listed by Unix Program  

                Examples of Searching  
     
The sed Editor  

                Command-Line Syntax  

                Syntax of sed Commands  

                Group Summary of sed Commands  

                Alphabetical Summary of sed Commands  
     
The awk Programming Language  

                Command-Line Syntax  

                Important gawk Options  

                Profiling with pgawk  

                Patterns and Procedures  

                Built-in Variables  

                Operators  

                Variable and Array Assignment  

                Octal and Hexadecimal Constants in gawk  

                User -Defined Functions  

                Group Listing of awk Functions and Commands  

                Coprocesses and Sockets with gawk  

                Implementation Limits  

                Alphabetical Summary of awk Functions and Commands  

                Internationalization with gawk  
     
Additional Resources  

                Source Code  

                Books