#!/bin/bash
STATE_OK=0 
STATE_WARNING=1 
STATE_CRITICAL=2 
STATE_UNKNOWN=3 
STATE_DEPENDENT=4 
blank=""
usage1="Usage: $0 -H <host> -u <ups> -v <variable> -w <warn> -c <crit>" 
exitstatus=$STATE_WARNING #default 
while test -n "$1"; do
    case "$1" in
        -c)
            crit=$2
            shift
            ;;
        -w)
            warn=$2
            shift
            ;;
        -u)
            ups=$2
            shift
            ;;
        -v)
            variable=$2
            shift
            ;;
        -h)
            echo $usage1;
            echo 
            exit $STATE_UNKNOWN
	    ;;
	-H)
            host=$2
            shift
            ;;
        *)
            echo "Unknown argument: $1"
            echo $usage1;
	    echo
            exit $STATE_UNKNOWN
            ;;
    esac
    shift 
done 

value=`/bin/upsc $ups@$host $variable`

echo $ups@$host - $variable = $value

#conversion to integer
value=${value/\.*}

# if blank, warning
if [ $value = $blank ]; then 
	exit $STATE_WARNING; 
fi

#c<value<=w
if [ $value -gt $crit ]; then 
	if [ $value -le $warn ]; then 
		exit $STATE_WARNING; 
	fi 
fi 
if [ $value -le $crit ]; then 
	exit $STATE_CRITICAL; 
fi

# value>warn
if [ $value -gt $warn ]; then 
exit $STATE_OK; 
fi