gawkinet.info: Top

(dir)

Preface

(dir)

Back to Software Index

General Introduction
********************

This file documents the networking features in GNU Awk (`gawk') version
4.0 and later.

   This is Edition 1.3 of `TCP/IP Internetworking With `gawk'', for the
4.0.0 (or later) version of the GNU implementation of AWK.


   Copyright (C) 2000, 2001, 2002, 2004, 2009, 2010 Free Software
Foundation, Inc.


   Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being "GNU General Public License", the Front-Cover
texts being (a) (see below), and with the Back-Cover Texts being (b)
(see below).  A copy of the license is included in the section entitled
"GNU Free Documentation License".

  a. "A GNU Manual"

  b. "You have the freedom to copy and modify this GNU manual.  Buying
     copies from the FSF supports it in developing GNU and promoting
     software freedom."

Preface

About this document.

Introduction

About networking.

Using Networking

Some examples.

Some Applications and Techniques

More extended examples.

Links

Where to find the stuff mentioned in this document.

GNU Free Documentation License

The license for this document.

Index

The index.

Stream Communications

Sending data streams.

Datagram Communications

Sending self-contained messages.

The TCP/IP Protocols

How these models work in the Internet.

Basic Protocols

The basic protocols.

Ports

The idea behind ports.

Making Connections

Making TCP/IP connections.

Gawk Special Files

How to do `gawk' networking.

Special File Fields

The fields in the special file name.

Comparing Protocols

Differences between the protocols.

File /inet/tcp

The TCP special file.

File /inet/udp

The UDP special file.

TCP Connecting

Making a TCP connection.

Troubleshooting

Troubleshooting TCP/IP connections.

Interacting

Interacting with a service.

Setting Up

Setting up a service.

Email

Reading email.

Web page

Reading a Web page.

Primitive Service

A primitive Web service.

Interacting Service

A Web service with interaction.

CGI Lib

A simple CGI library.

Simple Server

A simple Web server.

Caveats

Network programming caveats.

Challenges

Where to go from here.

PANIC

An Emergency Web Server.

GETURL

Retrieving Web Pages.

REMCONF

Remote Configuration Of Embedded Systems.

URLCHK

Look For Changed Web Pages.

WEBGRAB

Extract Links From A Page.

STATIST

Graphing A Statistical Distribution.

MAZE

Walking Through A Maze In Virtual Reality.

MOBAGWHO

A Simple Mobile Agent.

STOXPRED

Stock Market Prediction As A Service.

PROTBASE

Searching Through A Protein Database.