Backing up track and playlist information for Rhythmbox players

Rhythmbox Music player can only save a single playlist, if there are many playlists under rhythmbox (such as category by artist name), each playlist contains some songs, in order to avoid reloading the system after the re-build these playlists, you can back up the following files. Once the system is re-installed, restore the backed-up files to the appropriate location.
1. ~/.local/share/rhythmbox/rhythmdb.xml//contains information for all tracks
2. ~/.local/share/rhythmbox/playlists.xml//contains user-created playlists

Backing up track and playlist information for Rhythmbox players