我正在尝试使用 rsync 来维护我的 Aperture 库的备份副本。当我运行同步命令以查看会发生什么时，结果如下：
rsync --dry-run -r "/Volumes/Data/Aperture Library.aplibrary" "/Volumes/Backup"
skipping non-regular file "Aperture Library.aplibrary/Database/BigBlobs.apdb"
skipping non-regular file "Aperture Library.aplibrary/Database/Faces.db"
skipping non-regular file "Aperture Library.aplibrary/Database/History.apdb"
skipping non-regular file "Aperture Library.aplibrary/Database/ImageProxies.apdb"
skipping non-regular file "Aperture Library.aplibrary/Database/Library.apdb"
skipping non-regular file "Aperture Library.aplibrary/Database/Properties.apdb"
“file”命令表示至少“.db”文件是“SQLite 3.x 数据库”。如何使用 rsync 同步这些文件？