Introduction

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

In this episode and the next I want to start looking at redirection within Awk programs. I had originally intended to cover the subject in one episode, but there is just too much.

So, in the first episode I will be starting with output redirection and then in the next episode will spend some time looking at the getline command used for explicit input, often with redirection.

Long notes

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

Links

GNU Awk User’s Guide

Redirecting output of print and printf

Special Files for Standard Preopened Data Streams

Special File names in gawk

Previous shows in this series on HPR:

“Gnu Awk - Part 1” - episode 2114

“Gnu Awk - Part 2” - episode 2129

“Gnu Awk - Part 3” - episode 2143

“Gnu Awk - Part 4” - episode 2163

“Gnu Awk - Part 5” - episode 2184

“Gnu Awk - Part 6” - episode 2238

“Gnu Awk - Part 7” - episode 2330

“Gnu Awk - Part 8” - episode 2438

“Gnu Awk - Part 9” - episode 2476

“Gnu Awk - Part 10” - episode 2526

“Gnu Awk - Part 11” - episode 2554

“Gnu Awk - Part 12” - episode 2610

“Gnu Awk - Part 13” - episode 2804

Resources:

ePub version of these notes

Examples: awk14_fruit_data.txt, awk14_ex1.awk, awk14_ex2.awk, awk14_ex3.awk