`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 Note: 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 filename 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.
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