This book will teach you how to write programs in the REXX language on IBM mainframe computers. It is useful for technical, applications, and maintenance programmers working on new or legacy code written in the REXX language. It describes the REXX programming language for TSO/E, MVS, OS/390 and Z/OS. (IBM mainframe operating system environments). The book quickly gets you writing programs in REXX. It covers all REXX language elements, all TSO/E built-in functions, and the more important built-in REXX functions. You will find URLs in the book linking to a set of practice problems on a public webpage, as well as additional information on setting up your TSO/E session to execute REXX programs. This book was written and published in 2012 by the author of "REXX in the TSO Environment." The REXX Language on TSO improves on "REXX in the TSO Environment" in every way: it clarifies important points; it is better organized, and gives better examples.
Here are the chapter headings for The REXX Language on TSO:
Chapter 1: Overview of REXX               Chapter 2: Setting Up to Execute REXX in TSO/ISPF      Chapter 3: The Basic Features               Chapter 4: IF                        Chapter 5: Looping                     Chapter 6: SELECT: the CASE Structure            Chapter 7: PARSE                     Chapter 8: Debugging                     Chapter 9: Trapping Unexpected Conditions            Chapter 10: SIGNAL: the Extinct "GO TO"            Chapter 11: Math                     Chapter 12: Passing Commands to Command Processors      Chapter 13: Built-in Functions               Chapter 14: Writing Your Own Functions            Chapter 15: Writing Your Own Subroutines            Chapter 16: The Internal Data Queue, or Stack         Chapter 17: Compound Variables               Chapter 18: Reading and Writing Files: EXECIO         Chapter 19: The INTERPRET Instruction            Chapter 20: Running REXX in Batch               Index