CMS EXEC

This article is about the scripting language for the VM/CMS operating system. For other uses, see Exec (disambiguation).

CMS EXEC, or EXEC, is an interpreted, command procedure control, computer scripting language used by the CMS EXEC Processor supplied with the IBM Virtual Machine/Conversational Monitor System (VM/CMS) operating system.

Stuart Madnick wrote EXEC for Cambridge Monitor System (CMS) under CP-67 in 1966 at MIT on the model of CTSS RUNCOM. He originally called this processor COMMAND, and it was later renamed EXEC.

CMS EXEC has been superseded by EXEC 2 and REXX. All three — CMS EXEC, EXEC 2 and REXX — continue to be supported by the IBM CMS product.

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