Conky

sudo apt install -y conky-all lm-sensors
vim ~/.conkyrc

Config

Update Network infos

Check network infos

ip a

You will have output like this

2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 6c:2b:59:70:38:4d brd ff:ff:ff:ff:ff:ff
3: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether ec:5c:68:48:9f:fb brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.25/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp4s0
       valid_lft 83269sec preferred_lft 83269sec
    inet6 fe80::8582:de49:523c:5488/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

Here, enp3s0 is ethernet connection and wlp4s0 is wifi connection.

In .conkyrc, you have to replace enp3s0 and wlp4s0 with your infos.

Autostart

vim ~/.config/autostart/conky
#!/bin/bash
conky -b
sudo chmod 775 ~/.config/autostart/conky

restart or execute

conky -b