#!/usr/bin/env python3;
###############################################################################
# This program reads bytes from a file and prints them in decimal format.
# 
# Copyright © 2021 Richard Lesh.  All rights reserved.
###############################################################################

import Utils
import sys

def readBinaryFile(filespec) :
	ifh = open(filespec, "rb")
	count = 0
	c = Utils.getbyte(ifh)
	while c != None :
		print(str(c) + " ", end="")
		count += 1
		if (count % 20 == 0) :
			print()
		c = Utils.getbyte(ifh)
	if (count % 20 != 0) :
		print()
	ifh.close()

# Begin Main
if (len(sys.argv) != 2) :
	print("Syntax: " + sys.argv[0] + " {filename}")
	sys.exit(1)
filespec = sys.argv[1]
try :
	readBinaryFile(filespec)
except OSError as ex :
	print("Error: " + str(ex))