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Just one random thought came into my mind. Can we TRAP ENTER/RETURN key and run our script whenever that key is pressed?

Agreed, so do you think it is NOT possible to restrict user from changing PATH?

I was thinking of exploring this possibility but if it is at all not possible then may be I can direct my thoughts...

dr.house, as you said there can be "n" number of possibilities the user can find out that he is being manipulated so I am thinking dropping this idea of making all this transparent to user. Let user...

pludi: I have given a thought on using restricted shell (rbash) but I just want to restrict user doing few things like not allowing him changing PATH etc. I am checking if it is possible to set up...

This is my client's requirement so I cannot question him why he want to do this, I simply have to provide the solution as long as it is not crime by law :-) so it would be better we discuss this...

I have a requirement like this:

I have modified versions of certain internal/external commands that I am putting into some directory say /mydir.

All the users will go an authentication check...

I have a requirement like this:

I have modified versions of certain internal/external commands that I am putting into some directory say /mydir.

All the users will go an authentication check...

OK makes sense. This is for BASH shell so will check how I can set rbash. So is it possible that to do from /etc/profile? I need all the normal users except administrators to get rbash when they log...

Hi:

I have a requirement as below:

I have some standard Unix commands modified and kept them in a directory say /usr/clsh/bin. For example I have a script named "ls" kept here which is modified...