xd

import threading
n = 1
ln = threading.Lock()
def iteracije(a,b):
    global n
    ln.acquire()
    for i in range(1,1001):
        n = a * n + b
    ln.release()
t1 = threading.Thread(target=iteracije,args=(1,2))
t2 = threading.Thread(target=iteracije,args=(3,7))
t3 = threading.Thread(target=iteracije, args=(2,14))
t1.start()
t2.start()
t3.start()
t1.join()
t2.join()
t3.join()
print(n)

import threading
import time
import datetime
e=threading.Event()
def f1():
    time.sleep(10)
    print("Šumski požar prijavljen")
    e.set()
def f2():
    e.wait()
    print("vatrogasci poslani na orediste")
def f3():
    while e.is_set() == False :
        print("Trenutno je", datetime.datetime.now())
        time.sleep(1)
t1=threading.Thread(target=f1)
t2=threading.Thread(target=f2)
t3=threading.Thread(target=f3)
t1.start()
t2.start()
t3.start()
t1.join()
t2.join()
t3.join()


KLIJENT:
import socket
sock1 = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
sock1.connect("/home/korisnik/sock1.socket")
tekst = input("unesite: ")
sock1.send(tekst.encode("UTF-8"))
poruka = sock1.recv(4096)
print(poruka.decode())

SERVER:
import socket
sock1 = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
sock1.bind("/home/korisnik/sock1.socket")
while True:
    sock1.listen(0)
    sock_cli, adr_cli = sock1.accept()
    poruka = sock_cli.recv(4096)
    poruka2 = poruka.decode("UTF-8")
    brojevi = poruka2.split(",")
    br1 = int(brojevi[1])
    br2 = int(brojevi[2])
    rez = br1+br2
    rez_s = str(rez)
    rezultat = "rezultat, "
    treca = rezultat+rez_s
    print(treca)
    sock_cli.send(treca.encode("UTF-8"))
    sock_cli.close()

import subprocess
okolina = subprocess.call(["ls", "/home/korisnik/MOJDIR"])
if okolina == "" and okolina == "/home/korisnik/MOJDIR":
subprocess.run(["cd","/home/korisnik/MOJDIR"])

else:

subprocess.run(["cd","/home/korisnik"])
datoteke = subprocess.call(["ls", "/home/korisnik", "|", "grep", ".txt$"])

	print(datoteke)

import threading
zbroj = 0
lock_zbroj = threading.Lock()
def pribroji(i, j):
    global zbroj
    lock_zbroj.acquire()
    for x in range(i,j):
        zbroj += x
    lock_zbroj.release()

t1 = threading.Thread(target=pribroji, args=(1, 250001))
t2 = threading.Thread(target=pribroji, args=(250001, 500001))

t1.start()
t2.start()

t1.join()
t2.join()

print("zbroj iznosi:", zbroj)