Setup sudo to allow any commands in one directory
I'm having sort of a brain lapse at the moment and cannot remember how to setup a single user to run any commands inside of one directory. They should be able to sudo execute any command, rm, cp, ls, etc.. inside of a directory.
So for example purposes lets say username is Bob and he needs to run any command in the /app/ directory. What is the syntax or a good link you can point me to to reference this setup?
Thanks in advance.