ted mode: don&rsquo;t read or write to any file not specified on the
command line.  This means: don&rsquo;t read or write history files; don&rsquo;t allow
suspending; don&rsquo;t allow spell checking; don&rsquo;t
allow a file to be appended to, prepended to, or saved under a different
name if it already has one; and don&rsquo;t make backup files.
Restricted mode can also be activated by invoking <code>nano</code> with
any name beginning with <code>r</code> (e.g. <code>rnano</code>).
</p>
</dd>
<dt><samp>-S<