Huge sized folders can very easily be copied to other folders by using putty copy command. It takes very less time as compare to ftp. You can take back up of sites in few seconds by using copy command.
Create folder where you want to copy content. For example, two folders copyfrom and copyto. Run following command in putty.
cp -r copyfrom/* copyto
Above command will copy content to copyto folder. That’s it.