xflip(6) on Linux
The text b0d4f7316f60, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
astonish your friends with interesting X effects
Flags it lists
-
-delay -
-display -
-oblic -
-planes -
-random -
-times -
-vert -
-wait