An easy step-by-step guide to the Bash command-line shell and shell scripting ...

The awk command provides a lot more than simply selecting fields from input strings, including pulling out columns of data, printing simple text evaluating content – even doing math.

This guide will take you through how to create a shell script using multiple text editors, how to add comments, and how to use Shell variables. But before heading over to creating a shell script, ...

Using awk to perform simple numerical calculations is easier than you might imagine.