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This site is no longer maintained as of 2018.
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There are many excellent free Rexx tutorials available --
Classic Rexx--
Rexx: A Quick Rexx Tutorial from H. Fosdick Wikipedia’s description of the language and summary Rexx introduction from Rexx/imc Tutorial from Kyla Computing Ltd. Tutorial from Rexx/imc Tutorial and language reference from Kilowatt Software Tutorial & reference for Reginald REXX for Windows Tutorial and introduction from Vladimir Zabrodsky Advanced REXX Course from IBM (Guy De Ceulaer and Kris Buelens) Walk with a Dinosaur -- the Journey fro VM/CMS to a PC with Rexx, from Les Koehler supplemental ZIP file Introduction to Rexx Workshop (for VM) from Univ Conn. by Rick Ellis SHARE’s Rexx Tutorial from 1997 Introduction to REXX/VSE (PDF file) from Bernd Dowedeit from IBM Introduction to Rexx for AS/400 from Vladimir Zabrodsky REXX for CICS from Rich Smrcina OS/2 REXX - unique aspects, from American Programmer ARexx tutorials and code samples from Amiga University Rexx for Android and iOS Tutorial -- How to Run Rexx on Linux How to Run Rexx on Your Mac Tutorial -- What are Regular Expressions? How do you use them in Rexx? How to Write Portable Rexx Code, a DOC file Compare 3 ways to write the same script -- a script that displays the largest files on your Windows PC so you can delete any you choose to reclaim space. 3 tutorial articles--
“Reclaim Gigabytes using a Rexx Script” --Classic procedural Rexx (uses Regina) (PDF file) “Reclaim Gigabytes using a Recursive Rexx Script” -- Procedural Reginald REXX (PDF file) “Reclaim Gigabytes using an Open Object Rexx Script” --Open Object Rexx
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Object-oriented Rexx tutorials --
Brief summary of object-oriented Rexx scripting from Open Object Rexx project OORexx Product Brochure, PDF file from the Open Object Rexx team What’s Up with Object Rexx?, a one-page overview by H. Fosdick Resurrecting Rexx, Introducing Object Rexx, a PDF file, from Rony Flatscher The Programming Guide for Open Object Rexx is highly readable, from the OORexx Team Tutorial-- from Classic to Object Rexx, PDF file by Rony Flatscher Object-oriented Rexx scripting tutorial and language summary from Kilowatt Software roo! object-oriented programming presentation from Kilowatt Software Introduction to Object Rexx, a PDF file presentation from Prof. Rony Flatscher Rexx Objects, Part Deux, PDF file presentation from Rick McGuire supplemental ZIP file ooRexx Group Therapy: Overcoming Fear of Objects, PDF file from Rick McGuire Rexx Objects: Dipping a Toe into the Object Pool, PDF file from Rick McGuire Rexx Programmer’s Reference includes an object scripting tutorial.
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NetRexx tutorials --
NetRexx Introduction, a PDF presentation from Michael Cowlishaw. 49 slides. NetRexx Quick Start page at IBM (includes many links for example code, etc). NetRexx Tutorial, a PDF presentation by Thomas Schneider. 41 slides. NetRexx Hands-on Lab (for VM & VSE), a PDF presentation from Casey & Morse, IBM NetRexx Language Overview and Quick Start PDF manual from Michael Cowlishaw. NetRexx at Once: Quick Guide for Java Developers by Leonardo Boselli NetRexx Programming for the JVM, by Nick Hightower, in Java Developer’s Journal Kednos’ NetRexx on OpenVMS page
Additionally--
Most Rexx interpreters download with bundled learning materials and sample scripts. Read the articles below for more about Rexx and some more code walk-throughs. Download sample scripts written for illustrative purposes.
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Here are introductory articles. Experienced developers should go to the Reference and How-To’s sections below.
"Power through Simplicity" explains how power is achieved in Rexx -- a language that “looks” simple -- and the advantages to this approach to power programming over languages that “look” powerful. This tutorial presentation introduces all aspects of Rexx, including varieties, uses, language structure, and a walk-through of several example scripts. 61 slides, Powerpoint, distributed under the Open Publication License. “Rexx World,” a quick overview of the whole Rexx universe. “The Power Of Associative Arrays” in Dr. Dobb’s Journal describes how associative arrays solve problems. “Free Rexx Runs Everywhere!” describes the free Rexx interpreters and their uses. “Using Rexx for Easy Linux Desktop Scripting” describes Rexx for Linux users. “Rexx for Everyone” describes the advantages to free Rexx and gives you a feel for the language, by David Mertz. “Back to the Future with Rexx,” a quick language introduction for Windows users. “Whatever Happened to Rexx?” an overview for Windows users. “Rexx: A Quick Overview” describes the three Rexx varieties and how they are used-- classic procedural Rexx, object-oriented Rexx, and Java-compatible NetRexx. “REXX Concepts and Applications,” an intro to Rexx for OS/TSO by Bruce Woodworth. “Interview with Michael Cowlishaw” (inventor of Rexx, a PDF file). “Fast Programming with Rexx,” article with 3 progressive Rexx scripts. “What Ever Happened to OS/2 and OS/2 Rexx?” get the whole story in this DOC file. “What Ever Happened to the AmigaOS and ARexx?” get the story in this DOC file.
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These resources give you a completely online Rexx language reference (also see the Manuals and How-to’s sections below) --
Classic Rexx--
Wikipedia’s Rexx page Tutorial and full language reference from Kilowatt Software Instructions reference from Kilowatt Software Functions reference from Kilowatt Software Syntax summary quick reference from Kilowatt Software Tutorial and full language reference from Kyla Computing Ltd. Language reference summary from Rexx/imc Rexx FAQs from Mindspring Rexx language home page at IBM VM Rexx language syntax reference from Rick Swain Rexx Style Guide for TSO-REXX from Neil Hancock TSO Rexx FAQs from Neil Hancock VSE home page (includes Rexx) from IBM Rexx manuals and how-tos for all IBM platforms from The American Programmer Rexx versus Clist comparison from The American Programmer TSO and ISPF manuals from IBM from The American Programmer Index page for mainframe Rexx information from The American Programmer Many Rexx resources on the Open Project Directory from DMOZ Rexx for CICS home page from IBM ANSI 1996 Rexx standard, PDF file (pre-publication final draft) Stream I/O for TSO/E REXX PDF file manual from IBM i5/OS V5R2 Information Center online (includes Rexx topics) from IBM AS/400 rexx command parameters from IBM ARexx reference materials from Amiga University
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Object-oriented Rexx reference --
Documentation home page for Open Object Rexx from the Open Object Rexx Project Open Object Rexx-- List of classes and methods, from H. Fosdick roo! -- Kilowatt Software homepage D-Bus Language Bindings for ooRexx, PDF file, from Prof. Rony Flatscher The 2011 Edition of BSF4ooRexx, PDF file, from Prof. Rony Flatscher The CSVStreamClass, PDF file, from Jon (Sahananda) Wolfers ooRexx 4.0.0: What’s New?, PDF file, from Gil Barmwater ooRexx 3.2: New Features, PDF file from Rick McGuire Wikipedia’s page on Object Rexx
NetRexx reference --
NetRexx home page at IBM NetRexx 2, updated 2009, PDF file, by Michael Cowlishaw -- the book that defines NetRexx. Creating Java Applications Using NetRexx redbook from IBM NetRexxD documentation package (download ZIP file) from IBM Using REXX and the Netview command list language, a PDF file, IBM publication Programming: REXX and Netview command list language, IBM publication Eclipse Plug-in for NetRexx Wikipedia’s page on NetRexx
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This section gives you fast, direct online access to all Rexx product manuals--
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Classic Rexx --
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IBM Rexx Manuals --
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Download page for all ooRexx manuals here.
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All NetRexx manuals from IBM (all are PDF files) --
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NetRexx 2, updated 2009, PDF file, by Michael Cowlishaw -- the book that defines NetRexx (free download). The NetRexx Library, IBM’s list of their NetRexx docs (with links)
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This section offers resources that tell how to perform particular tasks --
Classic Rexx--
The Power of Rexx Associative Arrays, by Howard Fosdick and Les Koehler Cross-Platform TCP/IP Socket Programming in Rexx, PDF file and zipped sample code from Bob Stark How to do Parsing in Rexx, PDF file from Chip Davis Rexx/DW: Lightweight Cross-platform GUI Toolkit PDF file from Mark Hessling Intro to DB2 UDB Programming Using Rexx, PDF file and zipped sample code from Bob Stark How to script DB2 UDB with Rexx, from Howard Fosdick How to scripts DB2 UDB with Rexx Part II, from Howard Fosdick How to write CGI scripts with Rexx from SLAC Sample Rexx Code for GTK server using named pipes The Generic Call Interface (GCI) PDF file from Florian GroBe-Coosmann Download code examples for the above presentation ZIP file from Florian GroBe-Coosmann The Reginald REXX web site has many “how-to’s” for Windows users on topics like programming GUIs, the MIDI interface, speech, ODBC, CGI, RexxSock, Internet access, mailslots, transcendental math, RxZip, RxUnzip, and other topics. Extending the High Level Tracability of Rexx from Leslie Koehler Find many good presentations from the Rexx Language Association’s Annual Symposium for 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004 Reading and Writing Data using EXECIO on OS/390 and z/OS from Lionel Dyck Hard to do in Java, Easy to do in Rexx, PDF file from Rene Jansen Using the Rexx Compiler, PDF file from George Fulk REXXpertise Blog, mainframe REXX tips, by Frank Clarke Many mainframe Rexx “how-to’s”, tutorials, & manuals from The American Programmer How to write TSO/ISPF edit macros with Rexx from The American Programmer Many short mainframe Rexx “How-To’s” from The American Programmer NaSPA has Rexx articles online but requires a subscription (Network & Systems Professionals Association) TSO Times magazine has many TSO-REXX, editor, ISPF articles (no subscription required) The Mainframe Zone has some REXX and TSO/ISPF articles ISPF Application Technique with REXX, PDF file from Frank Clarke Rexx Anywhere (a Portability “How-to”) from Dave’s MVS Page Six coding rules of thumb (for VM) from Univ Illinois Rexx on the MAC -- 2007 Update, PDF file from Rene Jansen Rexx Tips and Tricks (for OS/2 and DOS), HTML, version 2.80, by Peter Childs Rexx Tips and Tricks (for OS/2 and DOS), info and download file, version 3.6 OS/2 Rexx articles at the new EDM/2 magazine web site Rexx for Android and iOS Rexx for Android, PDF file, from Pierre G. Richard, Jaxo Systems 64 Bit Rexx How to Write Portable Rexx Code, a DOC file
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Object-oriented Rexx how-to’s --
Automating Microsoft Excel with ooRexx & ActiveX, PDF & zipped sample programs from Lee Peedin Creating Professional Documents w/ ooRexx & the Printer Object, PDF file, sample scripts by L. Peedin BSF4Rexx: Camouflaging Java, PDF file from Prof. Rony Flatscher, presented at ApacheCon Asia 2006 Code from that presentation (ZIP file) here Employing Rexx as a Scripting Language for Java from Prof. Rony Flatscher How to automate Windows applications using ooRexx, PDF file from Florian Helmecke Examples of Open Office automation with ooRexx & BSF, PDF file from Walter Augustin More Open Office examples using ooRexx, PDF file from Andreas Ahammer Open Office Automisation with ooRexx, PDF file from Martin Burger Automating source control version system “Subversion” w/ ooRexx, PDF file from B. Hoisl log4rexx -- A log4j-Comparable Logging Framework for ooRexx Applications, from Prof. Rony Flatscher supplementary article and ZIP file Camouflaging Java as Object Rexx PDF file from Prof. Rony Flatscher Bean Scripting Framework for Rexx, a web directory containing how-to’s, sample code, tools and documentation, from Prof. Rony Flatscher Object Rexx and Windows Automation Interfaces PDF file from Prof. Rony Flatscher Download code examples for the above presentation ZIP file from Prof. Rony Flatscher Symposium papers and lecture notes web directory with how-to’s, sample code, and documentation on Object Rexx from Prof. Rony Flatscher Concurrency with Object Rexx PDF file from Lavrentios Servissoglou Download code examples for the above presentation ZIP file from Lavrentios Servissoglou Object REXX GTK+ Object Manager PDF file from W. David Ashley Using Procedural Rexx/SQL as an OORexx Object, PDF file from Lee Peedin supplemental ZIP file DATARGF: from Rexx to Java to Object Rexx PDF file from Michael Warmuth How to automate Excel with ooRexx -- and other ooRexx How-to’s by Lee Peedin WSH Objects and Object Rexx, by Brian Knittel AJAX Tutorial with server-side Object Rexx, by David Ruggles TeRA - A TestRunner Application for ooRexxUnit, PDF file presentation from Prof. Rony Flatscher supplemental ZIP file. How to Use Rexx and ooRexx from within their Java-based Sibling NetRexx, PDF file from Prof. Rony Flatscher 21st Century RexxTry: ooRexxTry.rex, PDF file from Lee Peedin. Download the tool here. Programming Internet Protocols in ooRexx, PDF file from W. David Ashley The ooRexx 4.x API’s and Creating Extension Classes in C++, PDF file from W. David Ashley Starting OO Design, PDF file from Gil Barmwater 64 Bit Rexx
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NetRexx how-to’s --
IBM NetRexx Resources page Classic REXX to NetRexx Converter, from Thomas Schneider VM/ESA Network Computing with Java and NetRexx, a redbook from IBM NetRexx Hands-on Lab, PDF file, C. Casey & C. Morse, IBM Doing GUI Programming with NetRexx on VM/ESA, PDF file, C. Morse, IBM NetRexx on Big Iron, PDF file, Rene Jansen Alternative Language Compilers for NetRexx, PDF file, Rene Jansen NetRexx Development on Android, Kermit Kiser Building NetRexx Systems, PDF file, Rene Jansen (different ways & tools to build NetRexx applications). Debugging JDBC Connections Using NetRexx, PDF file, Robert Wilson
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These selections offer “best practices” and style hints and tips for Rexx coding --
Rexx Rules of Thumb, from Howard Fosdick Rexx Style Guide for TSO-REXX from Neil Hancock Six coding rules of thumb for VM from Univ Illinois Rexx Tips and Tricks (for OS/2 and DOS), version 2.80, by Peter Childs Common Rexx Errors from David Martin
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Classic, procedural Rexx has two major standards, ANSI-1996 and the older TRL-2--
Rexx 1996 ANSI Standard (pre-pub version for final approval) Complete Rexx 1996 ANSI standards information and ordering page Differences between the ANSI-1996 and TRL-2 standards, from H. Fosdick Functions-- Standard vs non-standard, from H. Fosdick Brief History of the Rexx Standard, from Brian Marks
Object Rexx has no equivalent standard, but here is what is included in Open Object Rexx--
Open Object Rexx-- List of classes and methods, from H. Fosdick Go to the section with full Open Object Rexx documentation
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Rexx is an excellent language for writing portable code, programs that run on various platforms. Even highly portable languages, however, face certain system-dependent issues. These selections address advanced portability issues--
How to Write Portable Rexx Code, a DOC file Use RexxUtil to Write Portable Rexx Code, a DOC file (Note that RegUtil is basically the same as RexxUtil). Platform-specific Settings-- Default Command Environments & parse source system Strings, H. Fosdick Rexx Anywhere (a Portability “How-to”) from Dave’s MVS Page Thoughts On Rexx Portability from Steve Ferg “Writing Portable Rexx,” chapter 13 in Rexx Programmer’s Reference
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[Home] [FAQs] [Example Apps] [Tutorials] [Intros] [Reference] [Manuals] [How-To’s] [Best Practices] [Standards] [Portability] [Download Rexx] [Download Tools] [Sample Code] [Forums] [User Group] [Links] [Benchmarks] [Books] [Macros] [News] [Look-up: Instructions Functions] [ooRexx] [NetRexx] [Scripting] [About the Site] [Contact Us] [Site Map] [Sites Updates] [Topics other than Rexx] The Rexx portion of this website is no longer maintained -- expect some broken links! (C) 2005 - 2019
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