/proc is mostly "special" files, and a copy like you may be thinking of may not be what you want.
For example, in my proc directory right now, the "2756" directory contains information about the Firefox process I'm using to post this message.
ls -l /proc/2756/fd
Provides information about file sockets currently in use by Firefox.
This information changes from session to session of course.
Unfortunately, you'll need to provide the details on what you're trying to accomplish.