Is there possibility to disable echo (except ESC[8m which only hides text) programatically in remote terminal? Any equivalent for stty -echo?
Is there also any escape command to enable raw mode (equivalent of stty raw) in remote terminal? Without raw mode getchar works only after ENTER press.
Unfortunately, it seems that there is not a way to do this just using escape codes of any kind. You will have to take a look at termios.h. If you need to do this low-level and can't use C, see How do i read single character input from keyboard using nasm (assembly) under ubuntu?, other than that, try searching for "non-canonical terminal input" (Canonical vs. non-canonical terminal input)
