i have a test for shcool and i can't find some of the information i need. 1. how is a path specified in os/400 and ibm/mvs? 2. how is a directory specified in os/400 and ibm/mvs? 3. what type of directories exist in unix, ms-dos, ibm/mvs, and os/400? 4. how is a command acknowledged in unix, ms-dos, ibm/mvs, and os/400? the test is due in thursday. any help with these would be greatly appreciated.