I need to prevent users from accidentally copy/move files with a certain names into a specific directory. Is it possible ? 

I need to set something in directory /home/similar2 that will reject any attempts to put files with names *mytimesheet.* into it. Files not matching these can be put in the directory.
Only need this for command line.

IBM Red Hat Enterprise Linux (RHEL). I'd love any generic Unix solution also.
Thanks. Binh