control cursor with ansi escape
- Position the Cursor:
33[<L>;<C>H
Or
33[<L>;<C>f
puts the cursor at line L and column C.
- Move the cursor up N lines:
33[<N>A
- Move the cursor down N lines:
33[<N>B
- Move the cursor forward N columns:
33[<N>C
- Move the cursor backward N columns:
33[<N>D
- Clear the screen, move to (0,0):
33[2J
- Erase to end of line:
33[K
- Save cursor position:
33[s
- Restore cursor position:
33[u