If ever you need to re-construct the directory structure on Linux/Unix on a different machine you can just run this command.
# Generates a list of mkdir commands to re-construct the directory structure from current location
find . -type d| while read -r line; do echo “mkdir -p $line”; done
If you are wanting to copy files as well, just use scp or rsync
The use case for these kind of commands nowadays is greatly reduced, if you are using DevOps tools such as puppet or chef, they will do this kind of thing automagically out-of-the-box. If you are running your databases on VMs (datafiles within the VM), most of the time you could clone the image and everything is the same.
The aim of all those tools is to make the job of Sysadmins and DBAs easier whilst producing a environment where the state is consistent/known.