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<li class="toctree-l3"><a class="reference internal" href="example_duplicatesearch.html">Hoe werkt het zoeken naar duplicaten?</a></li>
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<article role="main" id="furo-main-content">
<section id="duplicate-file-search">
<h1>Duplicaten zoeken<a class="headerlink" href="#duplicate-file-search" title="Link to this heading">¶</a></h1>
<p>De zoekfunctie voor dubbele bestanden zoekt naar dubbele bestanden op de geselecteerde schijven of shares.</p>
<p>In deze context zijn dubbele bestanden bestanden die meer dan eens lijken te bestaan. Dergelijke overbodige bestanden verhogen onnodig de toegewezen ruimte van uw schijven.</p>
<a class="reference internal image-reference" href="_images/TreeSize-FileSearch_DuplicateFiles.png"><img alt="_images/TreeSize-FileSearch_DuplicateFiles.png" class="align-center" src="_images/TreeSize-FileSearch_DuplicateFiles.png" style="width: 100%;" />
</a>
<section id="context-tab">
<h2>Tabblad Context<a class="headerlink" href="#context-tab" title="Link to this heading">¶</a></h2>
<section id="search-mode">
<h3>Zoekmodus<a class="headerlink" href="#search-mode" title="Link to this heading">¶</a></h3>
<p>Selecteer een van de drie modi voor het zoeken naar duplicaten. U kunt zoeken naar dubbele bestanden, dubbele mappen of bestanden die geen duplicaten hebben.</p>
<section id="duplicate-files">
<h4>Dubbele bestanden<a class="headerlink" href="#duplicate-files" title="Link to this heading">¶</a></h4>
<p>Zoekt naar bestanden die duplicaten van elkaar zijn, met behulp van de geselecteerde vergelijkingsmethode.</p>
</section>
<section id="duplicate-folders">
<h4>Dubbele mappen<a class="headerlink" href="#duplicate-folders" title="Link to this heading">¶</a></h4>
<p>Zoekt naar mappen die duplicaten van elkaar zijn. Twee mappen worden als duplicaten beschouwd als ze hetzelfde aantal submappen en bestanden bevatten. Deze submappen en bestanden moeten ook gelijk zijn aan elkaar, met betrekking tot de geselecteerde vergelijkingsmethode.</p>
</section>
<section id="unique-files">
<h4>Unieke bestanden<a class="headerlink" href="#unique-files" title="Link to this heading">¶</a></h4>
<p>Deze instelling zoekt naar bestanden die geen duplicaten hebben in de geselecteerde zoekpaden.</p>
</section>
</section>
<section id="comparison-method">
<h3>Vergelijkingsmethode<a class="headerlink" href="#comparison-method" title="Link to this heading">¶</a></h3>
<p>Definieert welke criteria moeten worden gebruikt om bestanden als duplicaten te identificeren. Hier is een lijst van de beschikbare strategieën:</p>
<section id="file-content">
<h4>Bestandsinhoud<a class="headerlink" href="#file-content" title="Link to this heading">¶</a></h4>
<p>Deze optie gebruikt standaard MD5-controlegetallen voor vergelijking.</p>
<p>Bij het gebruik van deze methode wordt een zogenaamde hashwaarde berekend op basis van de inhoud van elk bestand. Bestanden met dezelfde inhoud hebben dezelfde hashwaarde, bestanden met verschillende inhoud zullen vrijwel zeker verschillende waarden hebben. Lege bestanden worden genegeerd, aangezien er geen inhoud is om te vergelijken.</p>
<p>Dit is nauwkeuriger dan het vergelijken van bestanden op naam, grootte en datum, maar het is ook veel langzamer.</p>
<p>Binnen de bestandszoekopties is het mogelijk om deze methode aan te passen om in plaats daarvan SHA256-hashes te gebruiken. Het SHA256-algoritme vermindert verder het statistische risico van hashbotsingen in vergelijking met MD5, maar het is ook aanzienlijk langzamer. Deze optie is alleen zichtbaar wanneer de experttoepassingsmodus wordt gebruikt.</p>
</section>
<section id="size-name-and-date">
<h4>Grootte, naam en datum<a class="headerlink" href="#size-name-and-date" title="Link to this heading">¶</a></h4>
<p>Selecteer deze optie om dubbele bestanden te identificeren door te zoeken naar gelijke namen, groottes en laatste wijzigingsdatums.</p>
<p>Dit is veel sneller dan het gebruik van controlegetallen om duplicaten aan te geven, maar het is ook minder nauwkeurig.</p>
</section>
<section id="name-and-size">
<h4>Naam en grootte<a class="headerlink" href="#name-and-size" title="Link to this heading">¶</a></h4>
<p>Selecteer deze optie om dubbele bestanden te identificeren door te zoeken naar gelijke namen en groottes.</p>
<p>Gelijk aan de allereerste vergelijkingscriteria, maar zonder rekening te houden met de “laatst gewijzigde” tijdstempel van de bestanden.</p>
<p>Dit is nuttig in het geval dat bestanden van de ene locatie naar de andere zijn verplaatst, wat dit tijdstempel kan wijzigen.</p>
</section>
<section id="name">
<h4>Naam<a class="headerlink" href="#name" title="Link to this heading">¶</a></h4>
<p>Selecteer deze optie om alle bestanden met gelijke bestandsnamen te vinden.</p>
<p>Dit type vergelijking kan nuttig zijn wanneer u op zoek bent naar ongewenste kopieën (bijv. documenten die lokaal zijn gekopieerd en gewijzigd).</p>
</section>
<section id="name-without-extension">
<h4>Naam zonder extensie<a class="headerlink" href="#name-without-extension" title="Link to this heading">¶</a></h4>
<p>Selecteer deze optie om bestanden met gelijke namen te detecteren, zonder rekening te houden met de bestandsextensie.</p>
<p>Dit kan interessant zijn als je zoekt naar dubbele back-upbestanden of bijvoorbeeld rijgegevens en compacte afbeeldings- of videobestanden (“MyPhoto.bmp” - “MyPhoto.png”).</p>
</section>
<section id="size-and-date">
<h4>Grootte en datum<a class="headerlink" href="#size-and-date" title="Link to this heading">¶</a></h4>
<p>Vergelijkt bestanden op basis van hun grootte en datumwaarden. Hierdoor kun je sneller, maar daardoor minder nauwkeurig, zoeken naar dubbele bestanden met verschillende namen. Onopzettelijke kopieën met namen als “Kopie van …” kunnen met deze methode snel worden geïdentificeerd.</p>
</section>
<section id="size-only">
<h4>Alleen grootte<a class="headerlink" href="#size-only" title="Link to this heading">¶</a></h4>
<p>Selecteer deze optie om alle bestanden van gelijke grootte te vinden.</p>
</section>
</section>
<section id="search-filters">
<h3>Zoekfilters<a class="headerlink" href="#search-filters" title="Link to this heading">¶</a></h3>
<p>Extra opties om het zoeken naar dubbele bestanden aan te passen:</p>
<section id="exclude-filter">
<h4>Uitsluitfilter<a class="headerlink" href="#exclude-filter" title="Link to this heading">¶</a></h4>
<p>Stelt je in staat om de globale uitsluitfilters voor deze zoekopdracht te activeren, deactiveren of aan te passen.</p>
<p>Door het zoeken naar duplicaten te beperken tot een specifieke voorselectie van bestanden, kun je voorkomen dat bestanden in bepaalde mappen (bijv. je lokale systeemmappen) als duplicaten worden weergegeven. Bovendien vermindert deze optie het aantal te vergelijken bestanden, wat de zoeksnelheid ten goede komt.</p>
</section>
<section id="ignore-ntfs-hardlinks">
<h4>Negeer NTFS &hardlinks<a class="headerlink" href="#ignore-ntfs-hardlinks" title="Link to this heading">¶</a></h4>
<p>Als deze optie geactiveerd is, worden hardlinks niet als bestandsduplicaten beschouwd. Opmerking: NTFS-hardlinks wijzen geen geheugen toe. Daarom maakt het verwijderen ervan geen extra geheugen beschikbaar. Bovendien gebruikt TreeSize hardlinks voor ontdubbelen.</p>
</section>
</section>
</section>
<section id="deduplicate">
<h2>Ontdubbelen<a class="headerlink" href="#deduplicate" title="Link to this heading">¶</a></h2>
<p>Gebruik de knop “Operations > Deduplicate” om op één na alle gecontroleerde dubbele bestanden te vervangen door NTFS-hardlinks (<a class="reference internal" href="deduplication.html#deduplication"><span class="std std-ref">Hoe werkt het ontdubbelen?</span></a>)</p>
<a class="reference internal image-reference" href="_images/TreeSize-FileSearch_Duplicates_Deduplicate.png"><img alt="_images/TreeSize-FileSearch_Duplicates_Deduplicate.png" class="align-center" src="_images/TreeSize-FileSearch_Duplicates_Deduplicate.png" style="width: 100%;" />
</a>
<p>In het configuratievenster kunt u een logbestand selecteren om de uitgevoerde vervangingen in te loggen. U kunt ook definiëren hoe TreeSize omgaat met bestanden die zich op verschillende harde schijven bevinden.</p>
<p>Je kunt bestanden op dezelfde harde schijf afzonderlijk vervangen door hardlinks of gewoon een referentiestation selecteren en alle bestanden op andere harde schijven vervangen door symbolische links.</p>
<div class="admonition note">
<p class="admonition-title">Notitie</p>
<p>Als de toestemming om symbolische koppelingen te maken niet kan worden verleend, wordt in plaats daarvan een Windows snelkoppeling (.LNK-bestand) gemaakt als noodoplossing.</p>
</div>
<p>Het contextmenu van de lijst met dubbele bestanden biedt een functie met de naam “Duplicaten vervangen door hardlinks”.</p>
<p>Deze functie werkt net als de functie “Ontdubbelen”, maar behandelt alle geselecteerde bestanden in plaats van de aangevinkte bestanden.</p>
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<li><a class="reference internal" href="#">Duplicaten zoeken</a><ul>
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<li><a class="reference internal" href="#search-mode">Zoekmodus</a><ul>
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