Get data usage on linux top bar

net_usage.sh

#!/bin/bash

wget https://humdi.net/vnstat/vnstat-latest.tar.gz
tar zxvf vnstat-latest.tar.gz
sudo apt install build-essential libgd-dev check pkg-config autotools-dev  libsqlite3-dev
sudo ./configure --prefix=/usr --sysconfdir=/etc && sudo make
sudo make install
sudo cp -v examples/systemd/vnstat.service /etc/systemd/system/
sudo systemctl enable vnstat
sudo systemctl start vnstat

# install executor (https://extensions.gnome.org/extension/2932/executor/)
sudo apt-get install chrome-gnome-shell
vnstat -i wlp2s0 --oneline | awk -F ';' '{print "Usage: " $6 " " $11}'