Install dzen2 by entering the following commands in the terminal:
sudo apt update sudo apt install dzen2
Description:
General-purpose messaging and notification program for X11
Dzen was designed to be scriptable in any language and integrate well with window managers like dwm, wmii and xmonad though it will work with any window manger.
Homepage: https://github.com/robm/dzen
Version: 0.9.5~svn271-4build1
Section: universe/x11