Downloading Rexx and Tools
You can download any free Rexx interpreter or tool from RexxInfo.org. The web site also provides access to free tutorials, articles, sample code, and complete reference materials for all Rexx interpreters.
Howard Fosdick is the author of Rexx Programmer’s Reference (Wrox, 2005), a comprehensive sourcebook on the language. It includes a tutorial, complete reference guide, and many example programs. The book covers both object-oriented and procedural Rexx scripting.