tcal(1) on Linux
The text 33d0e67cf0a5, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
runs the Gcal program with the date of tomorrow's day.
Flags it lists
-
--help -
--shift -
--version