#! /bin/sh
if test $# -lt 1
  then echo "Usage: logd2 log_file_name"; exit
fi
num=0
echo "Current time: " `date`
count=10000
until [ $num -gt $count ]  
do
	clear
	echo "No. " $num
	tail -n 37 $1	
	echo "Current time: " `date`
	echo ""
	num=`expr $num + 2`
	sleep 4
done
