Current File : //usr/lib64/nagios/plugins/check_aol
#!/bin/bash

FILENAME="/root/rlinux57/aol/output"
CMD=`awk '{print $4}' $FILENAME | grep -v "IPAddress:" | sort -nr | uniq |awk 'BEGIN { ORS = " " } { print $0}'`
if [ -f ${FILENAME} ]
then
    if [ -s ${FILENAME} ]
    then
        echo "$CMD blocked at aol"
        exit 1
    else
        echo "IP not listed"
        exit 0
    fi
else
    echo "File not exists"
    exit 3
fi