30-hdd-temp

#!/bin/bash
disks=${disks:-()}
out=""
dim="\e[43m"
white="\e[31m"
label="\e[1;30m"
COLUMNS=3
clear="\e[0m\e[39m"
my_target_temp=45
k=0

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