Restructured EXtended eXecutor
System Product Interpreter
(REXX, or "System Product Interpreter", originally known as "REX") A scripting language for IBM VM and MVS systems, developed by M. Cowlishaw at IBM ca. 1979, replacing EXEC2.
Versions: PC-Rexx for MS-DOS, AREXX for the Amiga, the OS/2 implementation from IBM, WINREXX (Rexx for Windows, from Quercus systems) and Personal Rexx (Rexx for MS-DOS, from Quercus systems).
See also Regina, freerexx, imc.
REXXWARE is an implementation of REXX for Novell NetWare.
Usenet newsgroup: news:comp.lang.rexx.
["The REXX Language: A Practical Approach to Programming", M.F. Cowlishaw, 1985].