zwrite(1) on Linux
The text d338c214d729, as Debian 5.0 (Lenny) shipped it.
write to another user via Zephyr
Flags it lists
-
-C -
-F -
-O -
-a -
-c -
-d -
-f -
-i -
-l -
-m -
-n -
-o -
-q -
-r -
-s -
-t -
-u -
-v