Hi:
I believe you are looking in the wrong folder the DIACHD folder is for the Introduction to SAS and Hadoop course. The DS2 course has a separate folder for the programs and as you noted, the programs all have different names.
If you go to the higher level in Windows Explorer, you are supposed to look in the DS2H folder, not the DIACHD folder, as shown in the instructions in step 1.b:
When you run cre8data.bat, it needs to be the .BAT file in the DS2H folder, not the DIACHD folder.
Hope this helps,
Cynthia