root-tail(1) on Linux
The text 90702b63c515, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
print text directly to X11 root window
Flags it lists
-
--fork -
--frame -
--justify -
--minspace -
--noflicker -
--noinitial -
--outline -
--partial -
--reverse -
--shade -
--update -
--whole -
--wordwrap -
-V -
-f