createFile.py

import random
import sys

#this is to create file with certain amount of size

sizeWanted = int(sys.argv[1]) # in kilobytes
sizeWanted = sizeWanted*1024 # convert from byte into kilobyte
wordCreated = ''

fileName = sys.argv[2]

tmp = -1
for i in range(sizeWanted):
    pct = (100 * i) / sizeWanted
    if tmp != pct:
        print "percentage of the file created: " + str(pct)
        tmp = pct

    wordCreated = wordCreated + chr(98)

f = open(fileName, 'w')
f.write(wordCreated)
f.close()
#print wordCreated