Hi Nordine,the IBM Security Learning Academy contains 2 videos that demonstrate how you can use the "Show differences" feature that zSecure Admin supports for comparing RACF profiles between systems or in time.
Part 1: https://www.securitylearningacademy.com/enrol/index.php?id=412Part 2: https://www.securitylearningacademy.com/enrol/index.php?id=402A difference to the demonstration is that, if I understand you correctly, you want to compare the UNLOAD of today with yesterday's of the same system. In that case, you can use option Setup files (SE.1) to allocate the involved 2 UNLOADs simultaneously. You either assign a different version number to the UNLOADs or a different complex name to these UNLOADs (e.g. use complex OLD for yesterday's UNLOAD vs NEW for today's UNLOAD). Next, you can use line command C, for set a "Set a compare baseline" for yesterday's UNLOAD.
Next, when you run RA.U with option "Show differences" selected, this yields user IDs that are added, changed, or deleted (depending on the type of differences that you selected).