REXX is a scripting language develop by IBM designed for ease of learning and reading. REXX is free and general-purpose language that offers thousands of free add-on tool
Ruby Programming Language is an interpreted, object-oriented programming language. It was developed in 1995 by Yukihiro Matsumoto, a.k.a “Matz,” in Japan. It is influenced by Eiffel and Lisp Programming language. It supports Multiple Programming Paradigms.
REBOL was acronym of Relative Expression Based Object Language.
Roop is a multiparadigm programming language which is target the artificial intelligence applications.