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NetMaster REXX and TSO/E REXX

In z/OS, the typical and most familiar implementation of REXX is the TSO/E REXX interpreter. This interpreter is also used in other IBM products and environments such as Tivoli NetView.

The REXX implementation used in CA NetMaster is named NetMaster REXX. NetMaster REXX uses a REXX engine named GREXX. GREXX is a REXX implementation written by CA Technologies.

NetMaster REXX is a compiled implementation of REXX. Because NetMaster REXX compiles rather than interprets source, there are differences between the NetMaster REXX and TSO/E implementations of REXX. The differences and similarities are covered in the following topics.