Fields.awk: Flat-file Database Tutorial

This tutorial is aimed at computer users who want an easy-to-use database for their home computers. It guides the reader in graded steps to the creation of "fields.awk", a script program designed for use on Linux, FreeBSD, Mac OS X or Android systems. The code is broken into modular sections so that various versions can be constructed, from the simplest to more complex. Analysis of how the code works is provided, along with specific examples.