Perhaps the question is simple, but gugleniya I found more questions "how to include empty folders in archive", than how to exclude empty folders.
The goal is simple backup folders on the server according to the principle "bekapit all later dates of previous versions of the file log." Tar is run with the parameters -zcvf + forcibly exclude some files and folders on templates. Folder enough village, so now I get the archives for 40-100kb containing only empty folders. If a simple way to exclude them?