[X4U] Tiger System Files appear that should be hidden

[Spoolman Nancy]

This Fall we received new G5 iMacs in. The normal route is to set one  
up with what is needed on them for the particular lab/building. Then  
I would clone using SuperDuper! (I used to use asr.) My life became  
so busy with our new student program I was unable to set up the  
computers this year. They had hired a guy to help out. His knowledge  
was PC only. This was done while I was out of town at a training  
workshop. Whatever copy program he used, left system files that  
should be hidden, out in the open. They look like alias'. My fear is  
that a teacher is going to toss one of these folders and hose the  
system, even though we've said not to. Some just don't always hear  
correctly. Anyway, the guy is new to Macs so wasn't sure which  
folders should appear at the root level.

The folders that show up are: etc, tmp, var and volumes. All but the  
Volumes folder looks like an alias.

Is there a command or something that would help me to hide these files?

Nanc