tcpbench(1) on Linux
The text 92456a16d6c6, as Debian 13 (Trixie) shipped it. The page shows this text now.
TCP/UDP benchmarking and measurement tool
Flags it lists
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-B -
-D -
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-S -
-T -
-U -
-V -
-b -
-k -
-l -
-n -
-p -
-r -
-s -
-t -
-u -
-v