ex17.py

from sys import argv
from os.path import exists

script,from_file,to_file=argv


print "Coping from %s to %s"%(from_file,to_file)

#We could do these two on one line too,how?
input=open(from_file)
indata=input.read()


print "The input file is %d bytes long"%len(indata)

print "Does the output file exists?%r"%exists(to_file)
print "Ready,hit RETURN to continue,CTRL-C to abort."
raw_input()

output=open(to_file,'w')
output.write(indata)

print "Alright,all done."

output.close()
input.close()