On cisc$210.$cis.udel.edu, there are ten files named EGG$0$ through EGG$9.$ Each has in it the name of another file. None of the EGGS will be more than two levels deep under $/($i$.$e$.,$ they will have no more than three $/$ in their full pathnames. $"/$usr$/$lib$/$EGG$0"$ is possible, but not $"/$usr$/$lib$/$etc$/$EGG$0").$