cmatrix(1) on Linux
The text 4e5fbb9ea999, as Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
Flags it lists
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-? -
-B -
-C -
-V -
-a -
-b -
-f -
-h -
-l -
-n -
-o -
-s -
-u -
-x