#!/usr/bin/python

import time,sys

if len(sys.argv) > 1:
	filename = sys.argv[1]
else:
	print "Must specify a filename!"
	sys.exit()

try:
	f = open(filename)
except:
	print "Could not open %s for reading!" % filename
	sys.exit()

readBuffer = ''

try:
	while True:
		readBuffer += f.read()
		lastNewline = readBuffer.rfind('\n')
		outputbuffer = readBuffer[:lastNewline].split('\n')
		for line in outputbuffer:
			if len(line)>0: print line
		readBuffer = readBuffer[lastNewline+1:]
		time.sleep(1)
except KeyboardInterrupt:
	print
	print "** Received SIGINT - exiting **"
	sys.exit()