Solaris

Hello all

What I want to do is create a user and allow him to run the following commands only :

su
cd
ls
cat

The moment he tries to use any other commands , he wont be allowed to do so.
So how can I implement this ??

Regards

Basically, you write a shell that only recognizes these four utilities, create a new user account with your shell set as that user's login shell, and let a user login to that account.

Note that if you implement your shell using a normal shell (e.g., bash, ksh, sh, etc.), you not only have to restrict the utilities they are allowed to run, you also have to be sure that the arguments they pass to these utilities don't make use of `...`, $(...), and other shell constructs to invoke other utilities while parsing command-line arguments. And, obviously, if your restricted user can successfully execute the su utility, there will be no restrictions on what that user can run in the environment set up by su.

I would look into RBAC.