IBM Mainframe Forum

I want to know What is Difference between CLIST & REXX. Please anyone explain to me like here we are using CLIST & Where we use REXX?

Thanks & Regards,
Jagadeesan

CLIST and REXX are two different languages. REXX is the direction of the future and CLIST is no longer being enhanced. REXX also runs on several platforms.

There's no rule on when to use either one. I would suggest new code be written in REXX but not to worry about changing existing CLISTs to REXX.

A CLIST will only run from within TSO/E. While a REXX exec can also run from within TSO/E, it can also run within other environments, such as MVS, DB2, and CICS. Many products offer REXX extensions to allow custom automation code to be developed for them.

Eventhough syntax wise both REXX and CLIST are almost same, REXX offers more builtin functions than CLIST.

Eg:
ISREDIT F 'ABC' ALL -----> code written in CLIST
"ISREDIT F 'ABC' ALL" -----> code written in REXX