Clear multiple lines

Question

Is it possible to clear multiple lines in C and keep others for example.

Code:

Displaysenrsordata
  loop 
    printf("This info stays"); <-stay on screen
    printf("This info stays"); <-stay on screen
    printf("This info Refreshes"); <-update redraw
    printf("This info Refreshes"); <-update redraw
    printf("This info Refreshes"); <-update redraw

Essentially I want to have some text to stay at the same place and redraw the updating data without clearing the whole screen.

Answer 1

If you are working on linux then use ncurses.

Example:

#include <stdio.h>
#include <ncurses.h>
  int main (void)
  {
    int a = 0;
    initscr ();
    printw("This info stays \n");
    printw("This info stays\n");
    curs_set (0);
    while (a < 100) {
            mvprintw (3, 4, "%d", a++);
            mvprintw (3, 8, "%d", a++);
            mvprintw (3, 12, "%d", a++);
            refresh ();
            sleep (1);
    }
    endwin();
    return 0;
 }

Answer 2

You can overwrite the current line be printing out a \r, or the last character on the current line by printing a \b.