Automatically spawn exim queue runners if a queue is detected

eximqueue.sh

#!/bin/bash
# eximqueue.sh - 07/30/2012 - Justyn Shull <justyn [at] justynshull.com>
messages=`exim -bpc`
maxmessages=120
maxrunners=50
while [ 1 ]; do
messages=`exim -bpc`
currunners=`ps afx | grep '/usr/sbin/exim -q' | wc -l`
echo -n "."
if [ $currunners -lt $maxrunners ]; then
if [ $messages -gt $maxmessages ]; then
echo -e "Current queue: $messages \t `uptime`" | tee -a /root/eximqueue.log
echo "`date`: There is a queue of $messages, spawning $maxrunners queue runners" | tee -a /root/eximqueue.log
counter=0
while [ $counter -lt $maxrunners ]; do
#echo -n "Spawned $counter "
echo -n "+"
/usr/sbin/exim -q &
let counter=counter+1
done
fi
fi
sleep 1
done