script to go to a different dir to run a commandline prompt in that dir

Hi,
I need to know how I'll be able to write a script that can goto a different dir where I don't have access to read,write and execute and also to run a commandline prompt in that dir with one file whose path has to be specified in that command.

Will I be able to do this?

Any ideas or solutions are welcome.

Then it would have to be run by a user that does have the proper permissions. If you don't have the access to an account with the proper permissions, then the rest (of your questions on this) is pointless.

consider I've the rights to access that idr.if so,what can be done?

I guess otherwise its called hacking and I don't want to do that anyway.
Thanks