During this course:

• participants learn the practical of the basic principles of the REXX procedural language in the TSO/E environment;
• they learn to use REXX as programming language and as supporting procedural language with the interaction with TSO and the manipulation of datasets;
• the REXX test and debugging facilities are explained;
• the built-in functions of REXX are treated practically.

This course is a good preparation for the course ISPF dialog manager.

• REXX execution concepts in TSO/E:
  Language processor environment • interfaces • stacking mechanism
• REXX statements:
  Syntax, instructions • built-in functions • variables • expressions • arithmetic calculations • string treatment
• REXX execs:
  Calling • writing • and debugging of REXX execs.
  Logical flow (DO-groups, SELECT, ...) • subroutines • terminal communication • file treatment
• Data parsing
• Advanced topics:
  Parameter transmission • interactive tracing • TSO/E external functions

Classroom instruction. About half the time is spent on practical exercises.

Delivered as a live, interactive training – available in-person or online, or in a hybrid format. Training can be implemented in English, Dutch, or French.

Use of ISPF (see course ISPF/PDF basics); notions of the basic TSO commands.

Programmers, analysts, system programmers, job schedulers, people responsible for support.