Install i3status by entering the following commands in the terminal:
sudo apt update sudo apt install i3status
Description:
Generates a status line for dzen2, xmobar or i3bar
i3status is a small (about 3000 SLOC) and light-weight program for generating a status bar for i3bar, dzen2, xmobar or similar programs by combining several information about your system (IP addresses of your interfaces, load, current date/time, ESSID of the network you are associated to, disk status, and so on).
Homepage: https://i3wm.org/i3status
Version: 2.11-1build1
Section: universe/utils