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CMS EXEC

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CMS EXEC

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CMS EXEC has been superseded by EXEC 2 and REXX.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.

PROFILE EXEC is an EXEC that is automatically executed when a user logs on to tailor their environment. A simple PROFILE EXEC might look like the following:

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