Repetitive tasks which are tedious, and require manual labour can be automated using Rexx. Just like you use the FIND, CHANGE, SAVE. If you are developing or maintaining the traditional mainframe . To run the tutorials on this blog, you will need access to an IBM mainframe. The REXX Tutorial. Contents. Introductory text; 1. Creating a Rexx program; 2. Doing arithmetic; 3. Errors; 4. Untyped data; 5. More on variables; 6. Functions; 7.

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For example, the variable number is assigned the integer-value 5.

Tutofial will always be exception to the above classification, but generally that is the norm. Subscribe To mfrexx Posts Atom. Here’s the output, you should be able to see. On the other hand, Rexx is an interpreted language.

It is also very helpful for developing small programs that perform various text file transformations.


This blog is an effort to make learning REXX easier. REXX is an interpreted language. We’ll introduce you to the hardware and peripherals. The examples can get increasingly complex and you see how much time you can save by automating such tasks.

To learn more about this topic, read these articles: Its a good practise that you liberally sprinkle your Rexx Program with comments, explaining the purpose and meaning of the code. You will find easy to understand tutorials and lessons for REXX here.

There are various components of BCP, that provide various services to the mainframe users. Look at the below screenshot, on how to run REXX Mainframe people seem to speak a completely different language and that doesn’t make life easy.

Every Rexx maainframe should contain the word “Rexx” in its first line of source-code. How do I execute or run my Rexx Program?

This means there is no fixed structure to a rexx program.

Learning the REXX Language

Is Rexx easy to learn? Informative article, just what I was looking for. Posted by Paras Doshi at 6: What are the Layout-rules in Rexx?


This is the service through which the user logs into the mainframe. Start every sentence tuorial on a new line. Every letter should have the correct slant. Rexx programs you can talk to other software applications that run on the Mainframe.

Learning the REXX Language

Read The Current Issue: What’s more, the books and manuals are incredibly hard to comprehend. What is the SAY instruction? Readers based in Indiacan buy the e-book for Rs. It provides a lot of functions to do string manipulations, number functions, Parsing funcitons in addition to the functions provided by ISPF and other rxex.

Michael can be reached at mike. Once you code a Rexx Program, you don’t have to compile it. Rexx does not require you to explicitly declare variables.