= ncurses =
 * http://www.tldp.org/HOWTO/NCURSES-Programming-HOWTO/intro.html#WHATIS

In short, it is a library of functions that manages an application's display on character-cell terminals.

== Example in Python ==
{{{#!highlight python
import curses
import time
import subprocess
import threading

class Update(threading.Thread):
    def __init__(self,w1,w2,w3):
        threading.Thread.__init__(self)
        self.__w1 = w1
        self.__w2 = w2
        self.__w3 = w3
        self.__running = False

    def run(self):
        self.__stop = False
        self.__running = True
        while self.__stop==False:
            out = subprocess.check_output(["uptime"])
            splitted = out.strip().split()

            one_minute = splitted[9].replace(",","")
            five_minutes = splitted[10].replace(",","")
            fifteen_minutes = splitted[11].replace(",","")            

            self.__w1.addstr(0,0,"one minute")
            self.__w1.addstr(0,16,one_minute)
            self.__w1.refresh()
            self.__w2.addstr(0,0,"five minutes") 
            self.__w2.addstr(0,16,five_minutes)
            self.__w2.refresh() 
            self.__w3.addstr(0,0,"fifteen minutes") 
            self.__w3.addstr(0,16,fifteen_minutes )
            self.__w3.refresh()

            time.sleep(2)
        self.__running = False

    def stop(self):
        self.__stop = True

    def is_running(self):
        return self.__running

class Screen(object):

    def __init__(self):
        self.__stdscr = curses.initscr()
        curses.noecho()
        curses.cbreak()
        self.__stdscr.keypad(1)

    def get_std_scr(self):
        return self.__stdscr

    def exit(self):
        curses.nocbreak()
        self.__stdscr.keypad(0)
        curses.echo()
        curses.endwin()

    def create_window(self,x,y,width,height):
        return curses.newwin(height, width, y, x)

if __name__=='__main__':
    screen = None
    exception = ""

    try:
        screen = Screen()
        w1 = screen.create_window(0,0,30,1)
        w2 = screen.create_window(30,0,30,1)
        w3 = screen.create_window(60,0,30,1)
        w4 = screen.create_window(0,1,30,1)
        t = Update(w1,w2,w3)
        t.start()
        loop = True

        while loop:
            key=screen.get_std_scr().getch()
            if key == ord('q'):
                w4.addstr(0,0,"Exiting ...") 
                w4.refresh()
                t.stop()
                while t.is_running(): 
                    time.sleep(1)
                loop = False
    except Exception as ex:
        exception = str(ex)
    finally:
        screen.exit()
    print(exception)
}}}