ctstat(8) on Linux
The text ab261913eaba, as Debian 8 (Jessie) shipped it.
unified linux network statistics
Flags it lists
-
--count -
--dump -
--file -
--help -
--interval -
--json -
--keys -
--subject -
--version -
--width -
-V -
-c -
-d -
-f -
-h -
-i -
-j -
-k -
-s -
-w