sed and awk Pocket Reference: Text Processing with Regular Expressions (Paperback, 2)

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