rtacct(8) on Linux
The text 3bf7ca59b0eb, as Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it.
network statistics tools.
Flags it lists
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-? -
-V -
-a -
-d -
-h -
-n -
-r -
-s -
-t -
-v -
-z