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hpr2824 :: Gnu Awk - Part 15

Redirection of input and output - part 2

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Hosted by Dave Morriss on 2019-05-30 is flagged as Explicit and is released under a CC-BY-SA license.
Tags: Awk utility, Awk Language, gawk, redirection.
Listen in ogg, spx, or mp3 format. | Comments (0)

Part of the series: Learning Awk

Episodes about using Awk, the text manipulation language. It comes in various forms called awk, nawk, mawk and gawk, but the standard version on Linux is GNU Awk (gawk). It's a programming language optimised for the manipulation of delimited text.

Introduction

This is the fifteenth episode of the “Learning Awk” series which is being produced by b-yeezi and myself.

This is the second of a pair of episodes looking at redirection in Awk scripts.

In this episode I will spend some time looking at the getline command used for explicit input (as opposed to the usual implicit sort), often with redirection. The getline command is a complex subject which I will cover only relatively briefly. You are directed to the getline section of the GNU Awk User’s Guide for the full details.

Long notes

I have provided detailed notes as usual for this episode, and these can be viewed here.


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