birthday(1) on Linux
The text 810d4b35880a, 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), Debian 3.1 (Sarge) shipped it.
warn about upcoming birthdays and other events
Flags it lists
-
-M -
-W -
-c -
-d -
-f -
-i -
-l -
-m -
-p -
-w