Grep (global search regular expression(RE) and print out the line,全面搜索正则表达式并把行打印出来)是一种强大的文本搜索工具，它能使用正则表达式搜索文本，并把匹配的行打印出来。Grep家族包括Grep、 eGrep和fGrep。eGrep和fGrep的命令只跟Grep有很小不同。eGrep是Grep的扩展，支持更多的re元字符， fGrep就是 fixed Grep或fast Grep，它们把所有的字母都看作单词，也就是说，正则
掌握正则表达式的写法和使用 Chapter 1. Introduction to Regular Expressions Section 1.1. Solving Real Problems Section 1.2. Regular Expressions as a Language Section 1.3. The Regular-Expression Frame of Mind Section 1.4. Egrep Metacharacters Section 1.5. Expanding
linux 命令参考大全英文版 PDF本书是一本linux使用者开发者的一部命令参考书，使用非常方便。摘录grepgrep [options] pattern [files]Search one or more files for lines that match a regular expression pattern.Regular expressions are described in Chapter 9. Exit status is 0 if any linesmatch, 1 i
Overview Hour 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Introduction xvi What Is this UNIX Stuff? 1 Getting onto the System and Using the Command Line 21 Moving About the File System 43 Listing Files and Managing Disk Usage 63 O
