(coreutils) stty invocation

 
 19.2 `stty': Print or change terminal characteristics
 =====================================================
 
 `stty' prints or changes terminal characteristics, such as baud rate.
 Synopses:
 
      stty [OPTION] [SETTING]...
      stty [OPTION]
 
    If given no line settings, `stty' prints the baud rate, line
 discipline number (on systems that support it), and line settings that
 have been changed from the values set by `stty sane'.  By default, mode
 reading and setting are performed on the tty line connected to standard
 input, although this can be modified by the `--file' option.
 
    `stty' accepts many non-option arguments that change aspects of the
 terminal line operation, as described below.
 
    The program accepts the following options.  Also see  Common
 options.
 
 `-a'
 `--all'
      Print all current settings in human-readable form.  This option
      may not be used in combination with any line settings.
 
 `-F DEVICE'
 `--file=DEVICE'
      Set the line opened by the file name specified in DEVICE instead of
      the tty line connected to standard input.  This option is necessary
      because opening a POSIX tty requires use of the `O_NONDELAY' flag
      to prevent a POSIX tty from blocking until the carrier detect line
      is high if the `clocal' flag is not set.  Hence, it is not always
      possible to allow the shell to open the device in the traditional
      manner.
 
 `-g'
 `--save'
      Print all current settings in a form that can be used as an
      argument to another `stty' command to restore the current
      settings.  This option may not be used in combination with any
      line settings.
 
 
    Many settings can be turned off by preceding them with a `-'.  Such
 arguments are marked below with "May be negated" in their description.
 The descriptions themselves refer to the positive case, that is, when
 _not_ negated (unless stated otherwise, of course).
 
    Some settings are not available on all POSIX systems, since they use
 extensions.  Such arguments are marked below with "Non-POSIX" in their
 description.  On non-POSIX systems, those or other settings also may not
 be available, but it's not feasible to document all the variations: just
 try it and see.
 
    An exit status of zero indicates success, and a nonzero value
 indicates failure.

 
* Control                     Control settings
* Input                       Input settings
* Output                      Output settings
* Local                       Local settings
* Combination                 Combination settings
* Characters                  Special characters
* Special                     Special settings

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