REXX
Scripting language from IBM designed to be easy to learn — widely used on IBM mainframes and still the shell language of z/OS.
dynamic
interpreted
since 1979
scriptingimperative
REXX (Restructured Extended Executor) was designed with readability as its primary goal — it reads like pseudocode. It remains the native scripting language for IBM z/OS mainframes and is used for automating JCL, TSO/ISPF interfaces, and batch processing. NetRexx compiles REXX to the JVM; Open Object REXX adds OOP capabilities.