xnbd-bgctl(1) on Linux
The text 88af98a7091f, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it. The page shows this text now.
Control a server running xnbd-server(8) through its control socket
Flags it lists
-
--cache-all -
--cache-all2 -
--exportname -
--force -
--progress -
--query -
--reconnect -
--switch