conch(1) on Linux
The text 9b5beb905c68, as Debian 10 (Buster) shipped it. The page shows this text now.
Conch SSH client
Flags it lists
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-A -
-C -
-I -
-K -
-L -
-N -
-R -
-T -
-V -
-a -
-c -
-f -
-i -
-l -
-m -
-n -
-o -
-p -
-s -
-t -
-v -
-x