Schools out, time to clean out the student network folders.  One could just use the GUI and kid by kid delete their files.  But that's inefficient.  Here is a much simpler way.

Fire up terminal or ssh into your server.

Now go to the class of xxxx folder

cd /Shared\ Items/Students/Class\ of\ 20xx

   *notice the \ before any space in the file name.

Run the following command inside the "Class of 20xx" folders:

sudo find . -mindepth 2 -delete

 This will list every file/folder inside of a student’s folder, and delete it with extreme prejudice.