Installation on Ubuntu:
sudo apt-get install rsync
Create an empty folder as you like
rsync --delete-before -d path-to-empty-folder path-to-target-folder
Related parameters:
–delete-before The receiver deletes files before transferring
–progress Display the transfer progress during transmission
-a Archive mode, which means recursively transferring files and preserving all file attributes
-H Preserve hard-linked files
-v Verbose output mode
–stats Provide the transfer status of certain files
-d Do not transfer files recursively