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An Awk Tutorial

v1.0.4 / TOC / 01 jan 02 / greg goebel / public domain

* The Awk text-processing programming language is a useful and simple tool for manipulating text. This document provides a quick overview of Awk. The Awk syntax used in this document corresponds to that used on UN*X. It may vary slightly on other platforms.

[1.0] A Guided Tour Of Awk

• [1.1] AWK OVERVIEW
  
• [1.2] AWK COMMAND-LINE EXAMPLES
  
• [1.3] AWK PROGRAM EXAMPLE
  

[2.0] Awk Syntax

• [2.1] AWK INVOCATION AND OPERATION
  
• [2.2] SEARCH PATTERNS (1)
  
• [2.3] SEARCH PATTERNS (2)
  
• [2.4] NUMBERS & STRINGS
  
• [2.5] VARIABLES
  
• [2.6] ARRAYS
  
• [2.7] OPERATIONS
  
• [2.8] STANDARD FUNCTIONS
  
• [2.9] CONTROL STRUCTURES
  
• [2.10] OUTPUT WITH PRINT & PRINTF
  
• [2.11] A DIGRESSION -- THE SPRINTF FUNCTION
  
• [2.12] OUTPUT REDIRECTION & PIPES
  

[3.0] Awk Examples, Nawk, & Awk Quick Reference

• [3.1] USING AWK FROM THE COMMAND LINE
  
• [3.2] AWK PROGRAM FILES
  
• [3.3] A NOTE ON AWK IN SHELL SCRIPTS
  
• [3.4] NAWK
  
• [3.5] AWK QUICK REFERENCE GUIDE
  
• [3.6] REVISION HISTORY