Unix Command to delete files from Deep Freeze ThawSpace

Hello,
I currently work as a student lab assistant at a local medical university and I am trying to find a Unix command that I can send using Apple Remote Desktop that will delete all the contents of our Thaw Space on our computers. the directory for the Thaw Space should be /Volumes/My Documents however, every time I try the following command the contents are not deleted:

rm -rf /Volumes/My Documents

I'm not sure if I should be executing this with a sudo command or not but I haven't had much luck. Any help would be appreciated. Thanks

How is this file system/directory mounted, who owns the files/directories stored within, what user are you running the command as, and from where?

I am running it from the Apple Remote Desktop as admin and it is my documents on all the computers are under /Volumes/My Documents I just want to be able to send a Unix command that will go in and remove everything from that directory from the host console.

I have no clue what the Apple Remote Desktop is, nor of any Apple products so am totally in the blind here? You suggest this is across multiple computers when you say "on all the computers". Do you have direct access to the directories or 'just' the ability to send remote commands to each required computer?

I'm using Apple Remote Desktop to send Unix Commands to computers accross our network so it's like I'm doing the commands using terminal on a Mac OS X

Ok,so what command would you need to use if you were sitting at each of the computers to perform this deletion, as what user would you need to run that command? Then arrange for your Remote Desktop to do the same thing.

exactly

Then you have the answer?

Put single or double quotes around the directory name: