check aws elb hosts

This scripts counts how many active instances are inService of a AWS ElasticLoadBalancer (ELB).
The code is based on a simple API call via bash
elb-describe-instance-health
Here is the code:

#!/bin/bash
#This script uses AWS command line tools to get information from AWS ELB
#Should be used with nagios
#by Felipe Ferreira Set 2013
#Requirements: AWS tools installed and working without asking for password (how to setup)
#Requirements-link = http://felipeferreira.net:81/?p=1341
#SET EC2 CMDS (CONFIGURE HERE)
export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk.x86_64/
export AWS_AUTO_SCALING_HOME=/opt/AutoScaling
export AWS_CLOUDWATCH_HOME=/opt/cloudwatch
export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk.x86_64/
export AWS_CREDENTIAL_FILE=/opt/AutoScaling/key.txt
export AWS_ELB_HOME=/opt/elbtools
export PATH=$PATH:$AWS_AUTO_SCALING_HOME/bin:$EC2_HOME/bin:$AWS_CLOUDWATCH_HOME/bin:AWS_ELB_HOME:AWS_ELB_HOME/bin
VERBOSE=1
outputDebug() {
    if [ $VERBOSE -gt 0 ] ; then
        echo -e "$1"
    fi
}
if [ $# -eq 0 ] ; then
    TEMP="-h"
else
    TEMP=`getopt -o vh -l 'versbose,help,l:,w:,c:' -- "$@"`
fi
outputDebug "Processing Args $TEMP"
if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
eval set -- "$TEMP"
while true ; do
    case "$1" in
        -v|--verbose) VERBOSE=1 ; outputDebug "Verbose Mode ON" ; shift ;;
        -h|--help) echo "Usage: $0 [--l ELASTICLAOADBANCE  [--w WARN] [--c CRITICAL]  [-v|--verbose] " ; exit 0;;
        --l) outputDebug "Option $1 is $2" ; ELB=$2 ; shift 2;;
        --w) outputDebug "Option $1 is $2" ; WARN=$2 ; shift 2;;
        --c) outputDebug "Option $1 is $2" ; CRIT=$2 ; shift 2;;
        --) shift ; break ;;
        *) echo "Internal error! - found $1 and $2" ; exit 3 ;;
    esac
done
CMD="/opt/elbtools/bin/elb-describe-instance-health $ELB |grep -c InService"
outputDebug "Executing: \n $CMD"
RESULT=`eval ${CMD}`
outputDebug "Result of cmd is: $RESULT"
if [ $RESULT -gt $CRIT ] || [ $RESULT -eq 0 ] || [ -z $RESULT ]; then
   echo "CRITICAL - ELB $ELB has ${RESULT} instances InService |ELB=$RESULT"
   exit 2
elif [ $RESULT -gt $WARN ]; then
   echo "WARNING - ELB $ELB has ${RESULT} instances InService |ELB=$RESULT"
   exit 1
else
   echo "OK - ELB $ELB has ${RESULT} instances InService |ELB=$RESULT"
   exit 0
fi