 <var>from</var> and end at <var>to</var>. 
If <var>from</var> is zero, start at the beginning.  If <var>to</var> is less than
<var>from</var>, then read until the end of the file.  If <var>filename</var> is
<code>NULL</code>, then read from <code>~/.history</code>.  Returns 0 if successful,
or <code>errno</code> if not. 
</td></tr>
</table>

<p>
<table width="100%">
<tr>
<td align="left">int <b>write_history</b><i> </i>(<i>const char *filename</i>)<i>
     </i></td>
<td align="right">Functie</td>
</tr>
</t