REXX Programming Workshop

Course: REXX1

Duration: 4 Days

Level: I

Topics Covered In This Course

This course provides instruction on the use of the Restructured EXtended eXecutor (REXX) language. A large number of terminal exercises are used to reinforce and emphasize the lecture material. The exercises are organized to allow students to progress at their own pace. The course assumes no previous knowledge of the REXX, however some programming background is essential.

REXX is a general purpose, high-level, procedural language that can be used for interactive programs and offers significant advantages over older EXEC/EXEC2 (VM) and CLIST (TSO and NetView) interpreted languages. REXX is similar to PL/1 or Pascal in syntax and structure, but has quite a few implementation unique capabilities.

The course begins with some historical background of the REXX language and its position in Systems Application Architecture (SAA). Language components, operators, instructions, and functions are introduced in turn. This course also covers extensions to the languages that are pertinent to each student's environment.

Students are encouraged to develop REXX programs in class, that may be useful in their current work environment. Students will be placed one or two per a terminal, and all students will be provided individual attention according to their required needs.

What You Can Expect

Code REXX instructions with proper syntax
Construct program logic using REXX control flow instructions
Define and manipulate user variables in REXX programs
Invoke and pass parameters to REXX programs
Code REXX instructions to accomplish file and terminal I/O
Describe the purpose and use of the data stack
Write REXX programs that use the data stack
Use REXX built-in functions to manipulate data
Create user defined functions and subroutines
Code REXX instructions that parse data strings
Debug REXX programs using the REXX TRACE facility
Identify the use of REXX command environments
Use REXX coding techniques which enhance efficiency and readability
Use REXX for message automation, and enhanced operation in the netview environment

Who Should Take This Course

This hands on, workshop-oriented course is intended for analysts, operators, system administrators, and technical support personnel who have a need to write, understand, or maintain REXX programs. This course applies to the VM/CMS, MVS/TSO, and NetView environments.

Recommended Prerequisites

No previous programming experience or programming training (in any language) is required.
For students in the VM environment, the ability to create and modify files using the XEDIT editor is necessary.
For students in the z/OS environment, the ability to create and modify files using the ISPF editor is necessary.

Training Style

Class consists of classroom lecture and lab sessions.

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Related Courses

Code	Course Title	Duration	Level
MFAP	Assembler Programming	5 Days	I	Details
REXXADV	Advanced REXX Programming	3 Days	II	Details

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Schedule For This Course
There are currently no public sessions scheduled for this course. We can schedule a private class for your organization just a couple of weeks from now. Or we can let you know the next time we do schedule a public session.

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