The higher-up(s) at my company are determining if we really need rexxtools/rexx.. what's the difference and is it really that costly? I thought rexx came with z/OS or something..
Rexx comes free with TSO which comes free with z/OS.
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Is rexxtools/rexx built into TSO/ISPF?
I do not know about rexxtools. The history about rexx is that it was delivered as part of TSO. It was sort of a replacement for CLIST, which does require TSO. However, you can use rexx without TSO, though some builtin functions require TSO.
REXX works beautifully with ISPF. But rexx does not require ISPF, though many of the questions here seem to have ISPF solutions. ISPF requires TSO.
REXX is a powerful language. I have never needed add-on functions. You have to evaluate your use of rexxtools to determine whether it is worth the cost.
