There is no such thing as the "ice man" tool. PGM=ICEMAN invokes the sort product at your site which might be DFSORT, Syncsort or CA-Sort. Before anyone can tell you anything about the "sort product", you have to identify which sort product you want information about.
If it's DFSORT, you can find information at the DFSORT website:http://www.ibm.com/storage/dfsort/
If you want something more specific, you need to tell us exactly what you're looking for.