Simple Daemon Shell

PROPATH="/var/www/html/"

PROGRAM="vertical"

LOGNAME="/tmp/monitor.vertical.go.log"

while true ; do

    NUM=`ps aux | grep ${PROGRAM} | grep -v grep | wc -l`

    echo ${NUM}

    if [ "${NUM}" -lt "1" ]; then

        #log name must distinguish program name

        sudo nohup ${PROPATH}${PROGRAM} >> ${LOGNAME} 2>&1 &

        echo -e `date +'%Y-%m-%d %H:%M:%S'` "\t program start" >> ${LOGNAME}

    fi

    #kill Zombie program

    NUM_STAT=`ps aux | grep ${PROGRAM} | grep T | grep -v grep | wc -l`

    if [ "${NUM_STAT}" -gt "0" ]; then

        killall -9 ${PROGRAM}

        sudo nohup ${PROPATH}${PROGRAM} >> ${LOGNAME} 2>&1 &

        echo -e `date +'%Y-%m-%d %H:%M:%S'` "\t program start" >> ${LOGNAME}

    fi

    sleep 2

done

exit 0