- Author: Wikibooks, the open-content textbooks collection
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Awk has two faces: it is a utility for performing simple text-processing tasks, and it is a programming language for performing complex text-processing tasks. Awk is useful for simple, quick-and-dirty computational programming. Anybody who can write a BASIC program can use Awk, although Awk’s syntax is different from that of BASIC. Anybody who can write a C program can use Awk with little difficulty, and those who would like to learn C may find Awk a useful stepping stone, with the caution that Awk and C have significant differences beyond their many similarities.
The book is a work in progress, and there may be incomplete or missing chapters.
Chapters include:
- Awk Overview
- Awk Command-Line Examples
- Awk Program Example
- Awk Invocation and Operation
- Search Patterns (1)
- Search Patterns (2)
- Numbers and Strings
- Variables
- Arrays
- Operations
- Standard Functions
- Control Structures
- Output with print and printf
- A Digression: The sprintf Function
- Output Redirection and Pipes
- Using Awk from the Command Line
- Awk Program Files
- A Note on Awk in Shell Scripts
- Nawk
- Awk Quick Reference Guide
