ttyでカーソルの外観を変更するには？

見ているhttps://www.kernel.org/doc/html/latest/admin-guide/vga-softcursor.html:

The cursor appearance is controlled by a ``<ESC>[?1;2;3c`` escape sequence
where 1, 2 and 3 are parameters described below. If you omit any of them,
they will default to zeroes.
first Parameter
        specifies cursor size::

                0=default
                1=invisible
                2=underline,
                ...
                8=full block
                + 16 if you want the software cursor to be applied
                + 32 if you want to always change the background color
                + 64 if you dislike having the background the same as the
                     foreground.

        Highlights are ignored for the last two flags.

second parameter
        selects character attribute bits you want to change
        (by simply XORing them with the value of this parameter). On standard
        VGA, the high four bits specify background and the low four the
        foreground. In both groups, low three bits set color (as in normal
        color codes used by the console) and the most significant one turns
        on highlight (or sometimes blinking -- it depends on the configuration
        of your VGA).

third parameter
        consists of character attribute bits you want to set.

        Bit setting takes place before bit toggling, so you can simply clear a
        bit by including it in both the set mask and the toggle mask.

Examples
--------

To get normal blinking underline, use::

        echo -e '\033[?2c'

To get blinking block, use::

        echo -e '\033[?6c'

To get red non-blinking block, use::

        echo -e '\033[?17;0;64c'