datestamp=`date --date "1 day ago" +%m/%d/%y`
yummessage="`fgrep $datestamp /var/log/yum.log`"
yumkernelmessage="`echo $yummessage | grep kernel`"
if [ "$yummessage" != "" ] ; then 
	message="`hostname` requires"
	maintmessage="The following packages have been updated by yum requiring a maintenance mode run by ensim: \n\n$yummessage" 
	kernelmessage="The following kernel has been installed by yum requiring a reboot \n\n$yumkernelmessage"
	if [ "$yumkernelmessage" != "$yummessage" ] ; then 
	        if [ "$yumkernelmessage" != "" ] ; then
			message="$message maintenance mode and a reboot.  $maintmessage\n\n$kernelmessage"
		else
			message="$message maintenance mode.  $maintmessage"
		fi
	else
		message="$message a reboot.  $kernelmessage"
	fi 
	echo -e "$message" | mail -s "`hostname` has been updated by yum." root
fi