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Rexx

Show me everything on Mainframe computers

- Also see NetRexx, a language that combines ideas from Java and Rexx.

Rexx is an interpreted script language developed by IBM originally for use by personal users of large operating systems. It was designed for ease of learning and use and to make programming accessible to non-programmers. It offers powerful character-manipulation, automatic data typing, manipulation of words, numbers, and names, and debugging capabilities.

REXX can be compared with these interpreted script languages:

Visual Basic
Netscape's JavaScript
Sun Microsystem Tcl
Larry Wall's Perl

In general, script languages are easier and faster to code in than the more structured, compiled languages such as C and C++ and are ideal for programs of very limited capability or that can reuse and tie together existing compiled programs.

Learn more about Mainframe computers

Mainframe Management: The modern mainframe: This isn't your gramps' Big Iron. Mainframe management has evolved dramatically over the past few years.
Roadmap to mainframe application modernization: This tip outlines a modernization path for business-critical applications in an existing mainframe environment.
Top five mainframe tips: Data center pros are asking questions about the expanding role mainframes play in the business.
Mainframe Management: The modern mainframe: This isn't your gramps' Big Iron. Mainframe management has evolved dramatically over the past few years.
Using CICS dump tables to manage problems in online systems: The CICS dump table feature can be useful for diagnosing and managing problems in online systems when the information you need isn't available through default channels.
High mainframe software costs may lead to platform's demise: Are mainframe software costs too high or does software productivity and reduced labor costs lead to lower mainframe total cost of ownership (TCO)?
Manage CICS workloads with transaction classes: Using transaction classes is a great way to manage CICS workloads that come in unpredictable increments. Learn how to use transaction classes and get examples in this tip.
Run CICS in batch to beat a shrinking batch window: As batch windows are getting shorter, it becomes harder to run traditional VSAM-based CICS systems. Try running CICS in batch as a low-cost solution.

LAST UPDATED:

03 Nov 2005

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More resources from around the web:

-	IBM has a Web site about Rexx.

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