Advanced z/OS REXX Programming

SEE SCHEDULE

Duration: 2 Days

Method: Instructor led, Hands-on workshops

Price: $1175.00

Course Code: RX1020

Audience

Programmer, technical support personnel, and other individuals that need to write REXX execs.

Description

This course will introduce students to the skills necessary to code REXX execs in z/OS environments. A series of written and lab exercises will be used to reinforce the classroom education.

Objectives

Upon successful completion of this course, the student will be able to:

Parse data using the PARSE statement
Read and write sequential datasets
Manipulate and access the REXX data stack
Create REXX based ISPF edit macros
Execute REXX execs in batch jobs
Write REXX execs that interact with Db2
Write REXX execs that issue MVS operator commands
Compile and linkedit REXX execs

Prerequisites

• z/OS Basic REXX Programming, or equivalent experience. • Previous experience in designing and coding application programs will enhance the results of this course.

Topics

I. Parsing Data
- PARSE Statement
- List Parsing
- String Pattern Parsing
- Positional Pattern Parsing
II. File I/O
- Executing Programs in Execs
  - ALLOC Command
  - CALL Command
  - FREE Command
- EXECIO Statement
III. Data Stack Processing
- Definition
- REXX Statements to Manipulate the Stack
- Uses of the Stack in REXX Execs
- TSO Commands That Use the Stack
IV. ISPF Edit Macros
- Overview
- Edit Macro Commands
- Using Edit Primary Commands
- Using Edit Line Commands
- Using Edit Macro Keyphrases
- Using Edit Labels
V. Batch REXX Execution
- Executing REXX Execs in TSO Background Jobs
- Executing REXX Execs in Batch Jobs
VI. Supplemental Topics (as time permits)
- REXX Language Support in Db2
- REXX Support for MVS Operator Commands
- Compiling REXX Execs