Week of 2006-08-26 17:00 to 2006-09-02 16:59

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Updated 9/1/2006: Now at version 6, which enables spellchecking in Vim 7 and adds highlighting for reference-style links thanks to Will Norris.

A comprehensive introduction to awk, suitable for beginners. The Awk text-processing programming language is a useful and simple tool for manipulating text. This document provides a quick tutorial for Awk. The Awk syntax used in this document corresponds to that used on UN*X. It may vary slightly on other platforms.

If you are like many computer users, you would frequently like to make changes in various text files wherever certain patterns appear, or extract data from parts of certain lines while discarding the rest. To write a program to do this in a language such as C or Pascal is a time-consuming inconvenience that may take many lines of code. The job is easy with awk, especially the GNU implementation: gawk.

The awk utility interprets a special-purpose programming language that makes it possible to handle simple data-reformatting jobs with just a few lines of code.

Manual for Gawk is available complete online.

This file documents awk, a program that you can use to select particular records in a file and perform operations upon them.