We have a REXX program which creates a dataset **LOG.DYYMMDD.THHMMSS.OUT** saves in DDNAME **LOGNM.** 

We call the REXX PROGRAM from JCL using IKJEFT1B utility. 

How do I use this dataset for further processing in JCL. I mean how I refer it in the JCL since the dataset name is dynamically created.