NuLl ignores files that have never been written. NonStruct ignores any file where the non-structured file bit is set. Logical ignores ASM logical files. This migration is not always perfectly transparent to the user. NonstructDisk ignores non-structured removable disks.
Tape ignores catalogued tapes.
Show includes passwords in the output. If you apply this to a file, the result is a null pathname. The default is Ascending. Options and catalog names can be given anywhere on the command line. You do not get the entire list of files sorted together.