could you please alias "cp, mv, rm" to add -i to the command line so users are prompted for each file before being removed/overwritten perminantly and not being able to recover (except from backups)
it makes it easier for new users to recover from mistakes; power users can always override this themselves.
once I typed by mistake "rm filename *" instead of "rm filename*" and everything in that directory is gone.
we could do the following
edit /etc/bash/bashrc to add the following lines
alias cp="cp -i"
alias rm="rm -i"
alias mv="mv -i"