bug#13089: Wish: split every n'th into n pipes

[Ole Tange]

I often have data that can be processed in parallel.

It would be great if split --filter could look at every n'th line
instead of chunking into n chunks:

  cat bigfile | split --every-nth -n 8 --filter "grep foo"

The above should start 8 greps and give each a line in round robin manner.

Ideally it should be possible to do so non-blocking so if some lines
take longer for one instance of grep, then the rest of the greps are
not blocked.


/Ole