TSO/E REXX

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.

Schedule a training?

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.

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Public training calendar

No public sessions are currently scheduled. We will be pleased to set up an on-site course or to schedule an extra public session (in case of a sufficient number of candidates). Interested? Please let us know.

Intended for

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

Background

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

You can test yourself to see if you have enough ISPF background by filling out the online selftest.

Main topics

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

Training method

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

Certificate

At the end of the session, the participant receives a "Certificate of Completion".

Duration

2 days.

Course leader

Guido Indesteege (ABIS).

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