the List value at key  </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="RpushCommand.html">LPUSH</a>  </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i> <i>value</i>  </td><td style="border: 1px solid #aaa; padding: 5px;">  Append an element to the head of the List value at key  </td></tr><tr><td style="border: 1px solid #aaa; padding: 5px;"> <a href="LlenCommand.html">LLEN</a>  </td><td style="border: 1px solid #aaa; padding: 5px;"> <i>key</i>  </td><td style="borde