RSYNC löschen alte Dateien
rsync -avh source/ dest/ --delete
// from https://superuser.com/questions/156664/what-are-the-differences-between-the-rsync-delete-options
// del opts:
--del an alias for --delete-during
--delete delete extraneous files from dest dirs
--delete-before receiver deletes before transfer (default)
--delete-during receiver deletes during xfer, not before
--delete-delay find deletions during, delete after
--delete-after receiver deletes after transfer, not before
--delete-excluded also delete excluded files from dest dirs
D3signa