6 Execute REXX programs

The REXX programming language would be very limited in its application if REXX programs could only run online in the TSO/ISPF environment. In this chapter, you will learn how REXX procedures under TSO and ISPF can run using a batch job. The execution of REXX procedures in batch jobs have the following advantages:

6.1Execution of programs in a TSO/ISPF environment

Any programs that are available in a z/OS system are executable in a TSO/ISPF environment. There are two types of programs:

–Programs are executable directly in z/OS without any additional support. These are all compiled programs and z/OS utilities.

–Programs needing the assistance of an interpreter are all programs written in REXX or CLIST.

The latter are divided ...

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