sudo apt install bc

#!/bin/bash
################################################
#Purpose: Show Date & Time & The Temp Of The CPU
#Author: Fuzz The Pi Guy https://www.youtube.com/fuzzthepiguy


printf "%20s%17s\n" "DATE & TIME" "TEMP (F)"
printf "%15s\n" "*************************************"

while true
do
        tempC=$(vcgencmd measure_temp | egrep -o '[0-9]*\.[0-9]*')
        tempF=$(echo "scale=2; 1.8 *$tempC + 32" | bc)
        timestamp="$(date)"
        printf "%20s%8s\n" "$timestamp" "$tempF"
        sleep 2 #How many seconds between each reading
done