![REXX Tutorial](/file/21551/18-REXX.zip/rexxsock.zip/rexxtut.gif)
Introduction
The TCP/IP protocol stack is now available for a long period of time (in
computer business terms at least) but in the last few years it has become
more and more important for the communication between individual computers,
especially since the evolution of the rapidly growing World Wide Web
applications. Many applications have since been developed on various platforms
but how often have you searched for a tool matching your requirements but
never found it? This gap in the list of tools could be closed with programs
written by yourselves - and this is where REXX comes into the game.
REXX is a very simple programming language that can be used for a large
variety of purposes. It's easy to learn and has a number of useful function
packages. One of these function packages is the REXX socket library
available on different platforms which will be covered in this tutorial.
We will learn the basic concept in TCP/IP communications and how you can
communicate with other computers using REXX. One chapter will cover a higher
level protocol used on the TCP/IP protocol stack: HTTP (HyperText
Transfer Protocol). This chapter will give you the basic knowledge of writing
TCP/IP socket programs in REXX. With this knowledge it will be easy for you
to expand the sample programs and adapt them to your own needs. This tutorial
expects basic knowledge of the REXX programming language and will only
explain TCP/IP related topics.
The following chapters are available in this tutorial:
This tutorial has initially been written for the
SHARE Technical Conference which took place in New Orleans, Lousiana
from July 28th to August 2nd 1996 and has been extended for the
SHARE Technical Conference in San Francisco from March 2nd to
March 7th 1997.
It is also available as a 460 KB Postscript file.
The samples shown in this tutorial are available in a single 11 KB
ZIP file.
Author information:
Christian Michel
REXX Development
IBM Germany
German Software Development Laboratory
Boeblingen, Germany
E-mail: cmichel@vnet.ibm.com
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