Simple ping wrapper

mypinger.sh

#!/bin/bash

DOCURL=true;
echo $0

runCurl() {
    PING=$(curl --connect-timeout 1 --max-time 1 --head -s ${1});
    ISUP=false;
    if [[ $PING == *"200 OK"* ]]; then
        ISUP=true;
    fi
}

runPing() {
    PING=$(ping -c 1 -t 2 $1 | grep "% packet");
    if [[ $PING == *" 0.0% packet"* ]]; then
        ISUP=true;
    fi
}

while [ true ]; do
    PREV=$ISUP;
    if [ "${DOCURL}" = true ]; then
        runCurl $1;
        sleep 2;
    else
        runPing $1;
    fi

    WHEN=$(date);
    if [ "${ISUP}" = true ]; then
        if [ "${PREV}" = $ISUP ]; then
            echo -n ".";
        else
            echo "${WHEN} ${1} Its all good";
        fi
    else
        echo "${WHEN} ${1} is down!!";
        LOG="/var/log/${1}.downtime.log"
        echo -e "${WHEN} Failed:\n\t${PING}" >> $LOG
        tput bel;
        sleep 1;
        tput bel;
    fi
done