REXX Programming I for VSE

Duration

3 - 4 hours

Overview

Audience

Personnel who require an introduction to REXX and an understanding of the fundamentals of programming in REXX

Prerequisites

Basic understanding of data processing concepts, as well as some basic programming skills

Objectives

After completing this course, the student should be able to -
  • Understand the concepts of the REXX language
  • Recognize the major elements of a REXX program
  • Understand and utilize the basic REXX Commands
  • Understand and utilize the REXX Function Commands

Course Content

Module 1 INTRODUCTION TO REXX

  • Description of the REXX Language

Module 2 INTRODUCTION TO REXX (PART 2)

  • A Look at a REXX Exec

Module 3 MAJOR ELEMENTS OF THE REXX LANGUAGE

  • Assignments
  • Comments
  • Character Strings
  • Arithmetic Operators
  • HEX Strings
  • REXX Symbols
  • Comparison Operators
  • REXX Expressions
  • Special Characters
  • REXX Numbers
  • Compound Symbols
  • Operators
  • Stem Variables

Module 4 PACCOUNT, PBRDCST, AND PINQUIRE COMMANDS

  • Say and Exit
  • If/Then/Else and NOP

Module 5 BASIC REXX KEYWORDS (PART 2)

  • Do/End
  • Iterate and Leave

Module 6 REXX ARITHMETIC AND CHARACTER FUNCTIONS

  • ABS, Random, Format, Sign, Max, Trunk, Min, Length
  • Index, Pos, LastPos, Substr, Delstr, Insert

Module 7 REXX WORD BASED AND FORMATTING FUNCTIONS

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

Module 8 ADVANCED REXX KEYWORDS

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

Module 9 THE EXECIO FUNCTION

 
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