#!/bin/bash
sd=(sda)
out=""
COLUMNS=3
clear="\e[0m\e[39m"

my_target_temp=45
for i in ${!sd[@]}; do
    temp=$(smartctl -a /dev/${sd[$i]} | grep Temperature_Celsius | grep 194	| awk '{print $10}' 2> /dev/null)
    color="\e[42m"
    if [ "$temp" -ge "${my_target_temp}" ]; then
        color="\e[41m"
    fi
    out+="${sd[$i]} \e[30m $color $temp $clear ,"
    c=i+1
    if [ $((($i+1) % $COLUMNS)) -eq 0 ]; then
		out+="\n"
	fi
done
out+="\n"
echo -e "
HDD Temps:"
printf "$out" | column -c $c -ts $',' | sed -e 's/^/  /'