Shell Programming and Scripting

FILE="/var/log/fwstatus" 
CHK="/tmp/fwstatus" 
 
service iptables status | if grep ESTABLISHED 1> /dev/null 2> /dev/null 
 
then 
rm -f $CHK 
echo "Firewall Running on Server" 
 
if test -f $CHK 
then 
echo "Not Sending an Email" 
exit 
fi 
 
 
else 
 
echo `date` | tee $FILE 
echo | tee -a $FILE 
 
echo "Firewall not Running" | tee -a $FILE 
echo | tee -a $FILE 
echo "Starting a Firewall Service" | tee -a $FILE 
echo | tee -a $FILE 
 
/scripts/fw-scripts/fw | tee -a $FILE (This is IPTABLES Script) 
 
if test $? = 0 
then 
echo "FW Run" | tee -a $FILE 
else 
echo "FW Stop" | tee -a $FILE 
fi 
 
echo "Now sending mail" 
$MAILPROG -s "$SUBJECT" "$EMAIL" < $FILE 
 
echo "Creating Tmp File" 
touch $CHK 
 
fi

        echo "Now sending mail"
        $MAILPROG -s "$SUBJECT" "$EMAIL" < $FILE
        echo "Creating Tmp File"
        touch $CHK
fi

    if test -f $CHK
                then
                # do nothing - it's existence means you sent an email already
                #   and hopefully that email made it to you :)
             else
                echo "Now sending mail"
                $MAILPROG -s "$SUBJECT" "$EMAIL" < $FILE
                echo "Creating Tmp File"
                touch $CHK
fi

service iptables status | if grep ESTABLISHED 1> /dev/null 2> /dev/null
        then
        rm -f $CHK
        echo "Firewall Running on Server"
line not needed ---->   if test -f $CHK
line not needed ---->           then
                        echo "Not Sending an Email"
                        exit
line not needed ---->   fi