Isso, como a maioria das coisas, é explicado em rsync
's
página de manual extremamente abrangente:
When the file transfer finishes, rsync replaces the progress line with a summary line that looks like this:
1,238,099 100% 146.38kB/s 0:00:08 (xfr#5, to-chk=169/396)
In this example, the file was 1,238,099 bytes long in total, the average rate of transfer for the whole file was 146.38 kilobytes per second over the 8 seconds that it took to complete, it was the 5th transfer of a regular file during the current rsync session, and there are 169 more files for the receiver to check (to see if they are up-to-date or not) remaining out of the 396 total files in the file-list.
Portanto, no seu exemplo, assembly/2. East Rutherford - English - Friday PM.mp4
foi o segundo arquivo a ser transferido e outros 5 de um total de 8 arquivos precisarão ser verificados.