very old linux select implementation. 1 main a) check for ac b) check for empty args(empty string) check_empty_argc c) signal handlers d) init struct with data(num of args, rows, cols, fitst, last,) e) init term data: 1) check for getenv("TERM") 2) check for tgetent("termname") 3) save termios struct twice. 0 fd. 4) ICANON and ECHO flas int termios struct 5) VMIN and VTIME termios struct 6) set terminal params(termios)