Quickly query disk formatting progress from the command line (linux/bash)

check-formatting-status.sh

#!/usr/bin/env bash

# Based on "How to know when formatting disk has finsihed - Ubuntu 16.04?" AskUbuntu post:
# https://askubuntu.com/questions/962866/how-to-know-when-formatting-disk-has-finsihed-ubuntu-16-04

device=sdb
device_path=/dev/$device
disk_sectors=`sudo fdisk -l $device_path | grep [D]isk | awk '{print $7}'`
disk_progress=`sudo cat /sys/block/$device/stat | awk '{print $7}'`
progress_percent=`echo "scale=4; ($disk_progress/$disk_sectors)*100"| bc`
echo -e "% ${progress_percent} formatting progress for $device_path."

# The above is just my quick and dirty to serve my own needs (tested under Ubuntu 22.04).
# A better script can be found here:
# https://askubuntu.com/a/1209474