Install xmotd by entering the following commands in the terminal:
sudo apt update sudo apt install xmotd
Description:
message of the day browser for X
Xmotd is a message-of-the-day browser for X11 (with additional sysvnews-like support for dumb terminals). It displays a customizable message box which displays each message-of-the-day until the user has read them all, and then creates a stamp-file.
Homepage: http://www.ee.ryerson.ca/~elf/xmotd/
Version: 1.17.3b-10
Section: universe/x11