Table of Contents

1. Introduction
2. Invoking grep

2.1 GNU Extensions
2.2 Environment Variables

3. Diagnostics
4. grep programs
5. Regular Expressions

5.1 Character Class
5.2 Backslash Character
5.3 Anchoring
5.4 Back-reference
5.5 Basic vs Extended

6. Usage
7. Reporting bugs
8. Copying

8.1 GNU General Public License
Preamble
How to Apply These Terms to Your New Programs
8.2 GNU Free Documentation License
ADDENDUM: How to use this License for your documents

Concept Index
Index