This is an intermediate course for people who need to write and maintain Rexx programs in the z/OS system environment.

Day 1

• Unit 1 - Introduction
• Unit 2 - Getting started with REXX (start)
• Lab exercise 1
• Unit 2 - Getting started with REXX (finish)
• Lab exercise 2
• Unit 3 - Programming in REXX (start)

Day 2

• Lab exercise 3
• Unit 3 - Programming in REXX (finish)
• Lab exercise 4
• Unit 4 - Functions and subroutines (start)
• Lab exercise 5

Day 3

• Unit 4 - Functions and subroutines (finish)
• Lab exercise 6
• Unit 5 - Debugging and error handling
• Lab exercise 7
• Unit 6 - Executing host commands
• Lab exercise 8

Day 4

• Unit 7 - Compound variables and the data stack
• Lab exercise 9
• Unit 8 - Reading and writing data sets in REXX
• Lab exercise 10
• Unit 9 - The parse instruction

Day 5

• Lab exercise 11
• Unit 10 - Using REXX: REXX compiler, REXX in batch, MVS console commands
• Lab exercise 12

You should be able to:

• Code basic Job Control Language statements
• Code in a programming language
• Create, alter, and delete data sets using TSO

These skills can be developed by taking:

• Fundamental System Skills of z/OS (ES10)
• A programming language course

• Write programs using the Rexx language
• Use various data parsing techniques
• Use built-in Rexx functions
• Create user-defined internal and external functions and subroutines
• Issue host commands from within Rexx execs
• Code programs that read and write data sets
• Use instructions and commands that manipulate the data stack
• Use Rexx debugging tools
• Write error-handling routines