UNIX for Dummies Questions & Answers

hi!
first i want to apologize for two things. my English and (possible) posting in the wrong sub forum (i couldn't find one that fits my question)

I am needing a script that can substitute rm.
the idea is that the operator can/must delete some folders and files from time to time, when the free space on some hard drive is running low, but some other files shouldn't be touched, and you know murphy
i can write a script to do that, but i was hoping someone already did
what i can think is a while loop that reads the blacklist file line by line, and if the %1 equals some line, then echo some msg and stop
but is more complex, i need logs, i have to match full path and, basename of the full path against, the first param. i need to be able to detect errors on the input, and avoid "rm -rf /" hells derived from coding errors

to be clear, i don't want you to make this script (if it has to be done, i will do it, and you will read me in the scripting section asking some specific problems), again, i was hoping some one already invented this wheel

About the interpreter/unix flavour it doesnt matter, if you know one that works on bash/ksh/zsh/csh/.* in SunOS/Linux/AIX/SCO/BSD/.* i will be more than grateful

What you want to do is to run a shell script in place of the rm exectuable.
Your shell script runs the real rm, but prevents certain actions. Is this right?

Ways to do this:
1. create an alias for rm like alias rm="/path/to/mymscript" in /etc/profile
2. or rename /usr/bin/rm to /usr/bin/realrm and then make /user/bin/rm a link to your script

you got it right, but i was hoping that the someone already wrote that script, thats the point of my post, to find such a script, to avoid having to do it myself :P