strobe(1) on Linux
The text 540970b4c3be, as Debian 1.3 (Bo), Debian 1.2 (Rex) shipped it.
Super optimised TCP port prober
Flags it lists
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-S -
-V -
-a -
-b -
-d -
-e -
-f -
-i -
-l -
-n -
-o -
-q -
-s -
-t -
-v