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Course Catalog » VSE Curriculum

REXX Programming I for VSE

4 hours



The REXX Programming I for VSE course introduces the REXX programming language and explains how to run it in the VSE environment. It also describes the major elements of the language, its keywords and functions.


Personnel requiring an introduction to REXX and knowledge of the fundamentals of programming in REXX.


Basic knowledge of data processing concepts and some basic programming skills.


After completing this course, the student will be able to:

  • Define the concepts of the REXX language
  • Recognize the major elements of a REXX program
  • Recognize the basic REXX commands
  • Recognize the REXX Function commands

Course Content

Introduction - Description of the REXX Language

Overview of the REXX Language

Introduction - A Look at REXX EXEC

The EXEC Command

Major Elements of the REXX Language



Character Strings

Arithmetic Operators

HEX Strings

REXX Symbols

Comparison Operators

REXX Expressions

Special Characters

REXX Numbers

Compound Symbols


Stem Variables

Basic REXX Keywords, Part 1

Say and Exit

If/ Then/ Else and NOP

Basic REXX Keywords, Part 2

Do/ End

Iterate and Leave

REXX Arithmetic and Character Functions

ABS, Random, Format, Sign, Max, Trunk, Min, Length

Index, Pos, LastPos, Substr, Delstr, Insert

REXX Word Based and Formatting Functions

Wordlength, Wordindex, Subword, Find, Words, Delword Wordpos, Word, Copies, Left, Right, Centre, Justify, Space Strip, Overlay, Reverse

Advanced REXX Keywords

Select, Procedure, Drop, Queue, Otherwise, Return, Pull Address, Call, Arg, Push, Address, Inspec, etc.

The EXECIO Function

Course Catalog » VSE Curriculum
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