When you log on to Raspberry Pi and open a terminal window, or you replace the graphic user interface and start directly to command line mode, you will start in the home directory. If your user name is Pi, the path is/Home/PI.
This is where the user saves the user's own files, including the folder desktop where the user saves the files on the desktop, and some other files and folders.
Navigate to your home directory in the command, just enterCDCommand and press Enter. This is equivalentCD/home/PI(Here pi is your user name ). You can also use the Tilde (~), SuchCd ~This symbol can be used to indicate the path relative to your home directory. For example,Cd ~ /Desktop/EquivalentCD/home/PI/desktop.
Navigate/Home/Directory and runLs, You will see the Home Directory of every user in the system.
Note: If you log on as a root user, enterCDOrCd ~The system will navigate to the root user's home directory. Unlike normal users, this path will navigate/Root/Instead/Home/root/. For more information, see root user.
If you do not want to lose some files, you can back up your home directory. For more information, see backing up.
Address: http://www.raspberrypi.org/documentation/linux/filesystem/home.md
Raspberry Pi home directory