#!/usr/bin/env python

from getpass import getpass
from crypt import crypt
import re
import os

salt = "CN"
word = getpass()

def login(word,salt):
    DES_pass = crypt(word, salt)
    return DES_pass

user = raw_input("Ingrese un usuario: ")
try:
    f = open("/etc/passwd","r+")

    for contenido in f.readlines():
        aux=contenido.split(":")
        user_aux = str(aux[0]) #user
        #
        if re.search(user_aux,user):
            print "\n\tCoinciden!! (ya existe)\n"
            break
        else:
            f.write("\n"+user+":"+login(word,salt)+":1003:1000:geco:/home/"+user+"/:/bin/bash")
            os.mkdir("/home/"+user+"/")
            break
except: IOError

fin = raw_input( "Presione una tecla para terminar..")