Bash script for my OpenBSD server that shows the CPU temperature and alerts me when it's getting too hot for my likings.

temp.sh

#!/bin/sh

if [ "$USER" != "root" ]; then
	echo "Not running as root. PC speaker disabled.";
fi

while :; do

	TEMP=$(sysctl -a | grep "hw.sensors");
	TEMPRAW=${TEMP%".00 degC"*};
	TEMPRAW=${TEMPRAW##*"temp0="};
	if [ $TEMPRAW -gt 60 ]; then
		OVERHEATING=1;
	else
		OVERHEATING=0;
	fi

	if [ "$OVERHEATING" == 1 ]; then
		TEMPRAW="\033[0;31m$TEMPRAW*C\033[0;0m";
	else
		TEMPRAW="\033[0;32m$TEMPRAW*C\033[0;0m";
	fi
		

	if [ "$USER" == "root" ]; then
		if [ "$OVERHEATING" = 1 ]; then
			echo A > /dev/speaker;
		fi
	fi

	echo -en "\rCPU: $TEMPRAW";
	sleep 4;

done