Update powerwall.sh

powerwall.sh

@@ -33,7 +33,7 @@ CHECKTEMP(){
 				
 				if [ "$(CHECK_HOST ${vHOSTIP})" != "false" ]; then
 					vHOSTDATA=$(ssh root@${PW_RACADM_ACCESS} racadm -r ${vHOSTIP} -u ${PW_ESXI_USER} -p "'${PW_ESXI_PASS}'" getsensorinfo | grep " Temp" 2>&1)
-					if (( $(grep -c . <<<"${vHOSTDATA}") > 1 )); then
+					if [ ${#vHOSTDATA[@]} > 1 ]; then
 						IFS=$'\n' read -rd '' -a vHOSTDATA <<<"${vHOSTDATA}"; unset IFS
 						echo -en "\r\033[K"
 						for sensordata in "${vHOSTDATA[@]}"; do