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#!/bin/bash

scale=3

lbas=$(sudo smartctl --all /dev/sda  | grep Total_LBAs_Written | awk '{print $(NF)}')
mbs=$(( $lbas / 2048 ))
# gbs=$(( $mbs / 1024.0 ))
gbs=$(bc -l <<< "scale=3 ; $mbs / 1024.0")

echo "LBAs written: $lbas"
echo "MBs written: $mbs"
echo "GBs written: $gbs"