monurbox/plugins/mem

#!/bin/bash

export SITE=$1

ALERT=20

awk '/MemFree/{free=$2} /MemTotal/{total=$2} END{print (free*100)/total}' /proc/meminfo | awk '{printf("%d\n",$1 + 0.5)}' | while read freemem; do
	if [ "$freemem" -lt "$ALERT" ]
	then
		exit 1
	fi
done