system
either <kbd>Backspace</kbd> acts like Delete or <kbd>Delete</kbd> acts like Backspace.
</p>
</dd>
<dt><code>set regexp</code></dt>
<dd><p>Do regular-expression searches by default.
Regular expressions in <code>nano</code> are of the extended type (ERE).
</p>
</dd>
<dt><code>set saveonexit</code></dt>
<dd><p>Save a changed buffer automatically on exit (<kbd>^X</kbd>); don&rsquo;t prompt.
</p>
</dd>
<dt><code>set scrollercolor <var>fgcolor</var>,<var>bgcolor</var></code></dt>
<dd><p>Use this color comb