โ Scribed by John Bambenek, Agnieszka Klus
No coin nor oath required. For personal study only.
This little book is everything a pocket reference should be. grep and egrep are not hard to use, but there are quite a few valid combinations of options, and this book pretty much covers them all. If you want to find expressions in one or more files, this is the tool to use. It's easy to forget everything available, so this book puts everything in one place for you. There's even a section on an option of grep that is only valid with PERL, so you may or may not have access to it. The following is the table of contents since it is not listed in the product description. One word of warning - if you don't already understand regular expressions this book won't teach it to you. It is indeed just a quick reference for concepts you should already know. The advanced tips and tricks section is the only exception to that rule and is itself worth the price of admission.
Chapter 1. grep Pocket Reference
Section 1.1. Introduction
Section 1.2. Conceptual Overview
Section 1.3. Introduction to Regular Expressions
Section 1.4. grep Basics
Section 1.5. Basic Regular Expressions (grep or grep -G)
Section 1.6. Extended Regular Expressions (egrep or grep -E)
Section 1.7. Fixed Strings (fgrep or grep -F)
Section 1.8. Perl-Style Regular Expressions (grep -P)
Section 1.9. Introduction to grep-Relevant Environment Variables
Section 1.10. Choosing Between grep Types and Performance Considerations
Section 1.11. Advanced Tips and Tricks with grep
Section 1.12. References
Table of Contents......Page 4
Introduction......Page 5
Conventions Used in This Book......Page 6
Using Code Examples......Page 7
Comments and Questions......Page 8
Conceptual Overview......Page 9
Introduction to Regular Expressions......Page 11
Quotation Marks and Regular Expressions......Page 12
Metacharacters......Page 13
POSIX Character Classes......Page 24
Crafting a Regular Expression......Page 25
grep Basics......Page 28
Basic Regular Expressions (grep or grep -G)......Page 31
Match Control......Page 32
General Output Control......Page 33
Output Line Prefix Control......Page 35
Context Line Control......Page 37
File and Directory Selection......Page 38
Other Options......Page 41
Extended Regular Expressions (egrep or grep -E)......Page 42
Fixed Strings (fgrep or grep -F)......Page 45
Perl-Style Regular Expressions (grep -P)......Page 47
Character Types......Page 49
Character Properties......Page 50
PCRE Options......Page 52
Introduction to grep-Relevant Environment Variables......Page 53
When to Use grep -E......Page 58
When to Use grep -P......Page 59
Performance Implications......Page 60
Advanced Tips and Tricks with grep......Page 61
Backreferences......Page 62
Binary File Searching......Page 63
Useful Recipes......Page 65
IP addresses......Page 66
U.S.-based phone numbers......Page 67
Credit card numbers......Page 68
Searching through large numbers of files......Page 69
Matching strings across multiple lines......Page 70
References......Page 71
Index......Page 73
๐ SIMILAR VOLUMES
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