wichSystem.py

#!/usr/bin/python3
#coding: utf-8

import re, sys, subprocess

# python3 wichSystem.py 10.10.10.188 

if len(sys.argv) != 2:
    print("\n[!] Uso: python3 " + sys.argv[0] + " <direccion-ip>\n")
    sys.exit(1)

def get_ttl(ip_address):

    proc = subprocess.Popen(["/usr/bin/ping -c 1 %s" % ip_address, ""], stdout=subprocess.PIPE, shell=True)
    (out,err) = proc.communicate()

    out = out.split()
    out = out[12].decode('utf-8')

    ttl_value = re.findall(r"\d{1,3}", out)[0]

    return ttl_value

def get_os(ttl):

    ttl = int(ttl)

    if ttl >= 0 and ttl <= 64:
        return "Linux"
    elif ttl >= 65 and ttl <= 128:
        return "Windows"
    else:
        return "Not Found"

if __name__ == '__main__':

    ip_address = sys.argv[1]

    ttl = get_ttl(ip_address)

    os_name = get_os(ttl)
    print("%s (ttl -> %s): %s" % (ip_address, ttl, os_name))