Скрипт для определения живости портала : Linux

cd /home/oracle/
if ping arrakis.ah.ru -c1;
then

    if links -dump http://arrakis.ah.ru/portal/page/portal/internal/usefull/directory | grep "Internal Server Error";
    then
        if [ -f 'notworking' ]
        then exit;
        fi;
    rm working;
    echo > notworking;
    (
        sleep 1
        echo "ehlo x"
        sleep 1
        echo "mail from:olegon@ah.ru"
        sleep 1
        echo "rcpt to:01@ah.ru"
        sleep 1
        echo "data"
        sleep 1
        echo "subject:Portal is down..."
        sleep 1
        echo "from:olegon@ah.ru"
        sleep 1
        echo "to:01@ah.ru"
        sleep 1
        echo "Hello."
        sleep 1
        echo "This is a test message."
        sleep 1
        echo "Bye."
        sleep 1
        echo "."
        sleep 1
        echo "QUIT"
       ) | telnet mx.ah.ru 25;
    else
        if [ -f 'working' ]
        then exit;
        fi;
    rm notworking;
    echo > working;
    (
        sleep 1
        echo "ehlo x"
        sleep 1
        echo "mail from:olegon@ah.ru"
        sleep 1
        echo "rcpt to:oakulabuhov@ah.ru"
        sleep 1
        echo "data"
        sleep 1
        echo "subject:Portal is up..."
        sleep 1
        echo "from:olegon@ah.ru"
        sleep 1
        echo "to:oakulabuhov@ah.ru"
        sleep 1
        sleep 1
        echo "Hello."
        sleep 1
        echo "This is a test message."
        sleep 1
        echo "Bye."
        sleep 1
        echo "."
        sleep 1
        echo "QUIT"
        ) | telnet mx.ah.ru 25;
    fi;
else
        if [ -f 'notworking' ]
            then exit;
        fi;
    rm working;
    echo > notworking;
    (
        sleep 1
        echo "ehlo x"
        sleep 1
        echo "mail from:olegon@ah.ru"
        sleep 1
        echo "rcpt to:oakulabuhov@ah.ru"
        sleep 1
        echo "data"
        sleep 1
        echo "subject:Portal is down..."
        sleep 1
        echo "from:olegon@ah.ru"
        sleep 1
        echo "to:oakulabuhov@ah.ru"
        sleep 1
        sleep 1
        echo "Hello."
        sleep 1
        echo "This is a test message."
        sleep 1
        echo "Bye."
        sleep 1
        echo "."
        sleep 1
        echo "QUIT"
       ) | telnet mx.ah.ru 25;

fi;