#!/bin/bash

EMAIL=santiago

while true ;
do
    F1=log/`date '+%F-%H-%M-%S'`
    F2=${F1}s
    birdc4 show ospf state | grep -v 'dr ' > $F1

    csplit -ftmp/x -n3 $F1 '/^$/' '{*}' > /dev/null
    for A in tmp/* ;
    do
	sort ${A} > ${A}s
    done

    cat tmp/*s > $F2
    rm tmp/*

    if [ -n "`diff log/00last $F2`" ]
    then
	diff -u log/00last $F2 | mail -s 'OSPF Change' $EMAIL
	mv $F2 log/00last
    else 
	rm $F1 $F2
    fi

    sleep 10;
done