O comando que você compartilhou irá sincronizar /media/masi/fat32/destinationDirectory/
(destino)
com base em $ HOME/SourceDirectory/
(fonte) e irá apagar aqueles que de destino que estão em extra em comparação com a fonte.
> --progress : will show you the process progress
> -r : recursively
> -t --times : This tells rsync to transfer modification times along with the files and update
> them on the remote syste
> -c --checksum This forces the sender to checksum all files using a 128-bit MD4 checksum before transfer
> -u -- update This forces rsync to skip any files for which the destination file already exists and has a date later than the source
> file.
rsync -rtvuc --delete --progress $HOME/SourceDirectory/ /media/masi/fat32/destinationDirectory/