#!/bin/bash

MAIL1="email@email.com"
IFS="
"
for servers in `cat /export/home/xxx/servers_all`;do
 echo "$servers"
 if [ `grep -c $servers /export/home/xxx/servers_exclude` -eq 0 ];then
  echo OK.
 fi
 if [ `/opt/xx/bin/snmpget $servers <MIB goes here> 2>&1 | grep -c 'No response'` -gt 0 ]; then
  /usr/bin/echo "SNMPD Down on $servers" |/usr/bin/mailx -s "SNMPD Down on $servers" $MAIL1;
 fi
done

#!/bin/bash
MAIL1="email@email.com"

IFS=","

cat /export/home/xxx/servers_all | \
while read HOST_NAME HOST_IP
do
  echo $HOST_NAME $HOST_IP
  # Is entry present in servers_exclude
  egrep "$HOST_NAME|$HOST_IP" /export/home/xxx/servers_exclude > /dev/null 2>&1
  if [ "$?" -eq 0 ]
  then
    # nope, poll host
    echo "-----> code to poll $HOST_NAME goes here"
    if [ "$?" -ne 0 ]
      then
      # Could not poll host, trying ip number
      echo "-----> code to poll $HOST_IP goes here"
      if [ "$?" -ne 0 ]
      then
        # Could not poll ip, mail this
        echo "-----> code for mailing goes here"
      fi
    fi
  fi

echo "checking next line"

done