The Free On-line Dictionary of Computing (19 January 2023):

stty

    (set teletype) The Unix command to change
   the behaviour of a terminal device driver or "tty".

   Text you type at the command line (shell), and text output
   by commands, is processed by "tty" device driver software.
   The name "tty" is a historical reference to physical
   teletype devices once used for input and output.  These days
   a "tty" is more likely to be connected to a terminal window
   on a graphical desktop but many of the same options still
   apply.

   The stty command allows you to set many different aspects of
   the operation of a tty.  This includes things like:

   * whether characters you type are echoed (output) back to you
   (this might be turned off when entering a password)

   * output of newline characters (Unix software expects lines
   to end with a single line feed character but it will
   typically be entered as a return and output as return and
   line feed, the tty handles this translation).

   * handling the interrupt or "break" character, normally
   control-C.  Typing this should stop execution of the current
   running program so the tty needs to handle it even when not
   expecting input.

   Unix manual page: stty(1).

   (2020-05-09)