<h3>Help maintaining Koreader</h3>
<ul>
<li><b>delete dead history entries.sh</b>: deletes all history files that point to books that are no longer existent on the internal memory of the device<br>
deletes also the related sdr folders, irrespective whether they may contain information on still exiting books<br>
This script concerns only the "main version" of several installed copies of Koreader</li>
</ul>
