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Hex dump - Wikipedia
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class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Hexadecimal view of computer data</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="/wiki/Hex_file_(disambiguation)" class="mw-redirect mw-disambig" title="Hex file (disambiguation)">Hex file format</a>.</div> <p> In <a href="/wiki/Computing" title="Computing">computing</a>, a <b>hex dump</b> is a <a href="/wiki/Text-based_format" class="mw-redirect" title="Text-based format">textual</a> <a href="/wiki/Hexadecimal" title="Hexadecimal">hexadecimal</a> view (on screen or paper) of (often, but not necessarily <a href="/wiki/Binary_data" title="Binary data">binary</a>) computer data, from <a href="/wiki/Computer_memory" title="Computer memory">memory</a> or from a <a href="/wiki/Computer_file" title="Computer file">computer file</a> or <a href="/wiki/Computer_data_storage" title="Computer data storage">storage</a> device. Looking at a hex dump of data is usually done in the context of either <a href="/wiki/Debugging" title="Debugging">debugging</a>, <a href="/wiki/Reverse_engineering" title="Reverse engineering">reverse engineering</a> or <a href="/wiki/Digital_forensics" title="Digital forensics">digital forensics</a>.<sup id="cite_ref-COMPSCI_2017_1-0" class="reference"><a href="#cite_note-COMPSCI_2017-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Interactive editors that provide a similar view but also manipulating the data in question are called <a href="/wiki/Hex_editor" title="Hex editor">hex editors</a>. </p><p>In a hex dump, each <a href="/wiki/Byte" title="Byte">byte</a> (8 <a href="/wiki/Bit" title="Bit">bits</a>) is represented as a two-digit <a href="/wiki/Hexadecimal" title="Hexadecimal">hexadecimal</a> number. Hex dumps are commonly organized into rows of 8 or 16 bytes, sometimes separated by whitespaces. Some hex dumps have the hexadecimal <a href="/wiki/Memory_address" title="Memory address">memory address</a> at the beginning. </p><p>Some common names for this program function are <code>hexdump</code>, <code>hd</code>, <code><a href="/wiki/Od_(Unix)" title="Od (Unix)">od</a></code>, <code>xxd</code> and simply <code>dump</code> or even <code>D</code>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Samples">Samples</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hex_dump&action=edit&section=1" title="Edit section: Samples"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A sample text file: </p> <pre>0123456789ABCDEF /* ********************************************** */ Table with TABs (09) 1 2 3 3.14 6.28 9.42</pre> <p>as displayed by <a href="/wiki/Unix" title="Unix">Unix</a> <code>hexdump</code>: </p> <div class="mw-highlight mw-highlight-lang-hexdump mw-content-ltr" dir="ltr"><pre><span></span><span class="nl">0000000</span><span class="w"> </span><span class="mh">30</span><span class="w"> </span><span class="mh">31</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">33</span><span class="w"> </span><span class="mh">34</span><span class="w"> </span><span class="mh">35</span><span class="w"> </span><span class="mh">36</span><span class="w"> </span><span class="mh">37</span><span class="w"> </span><span class="mh">38</span><span class="w"> </span><span class="mh">39</span><span class="w"> </span><span class="mh">41</span><span class="w"> </span><span class="mh">42</span><span class="w"> </span><span class="mh">43</span><span class="w"> </span><span class="mh">44</span><span class="w"> </span><span class="mh">45</span><span class="w"> </span><span class="mh">46</span> <span class="nl">0000010</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">2f</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span> <span class="nl">0000020</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span> <span class="p">*</span> <span class="nl">0000040</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2f</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">54</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">62</span><span class="w"> </span><span class="mh">6c</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">77</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">74</span> <span class="nl">0000050</span><span class="w"> </span><span class="mh">68</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">54</span><span class="w"> </span><span class="mh">41</span><span class="w"> </span><span class="mh">42</span><span class="w"> </span><span class="mh">73</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">28</span><span class="w"> </span><span class="mh">30</span><span class="w"> </span><span class="mh">39</span><span class="w"> </span><span class="mh">29</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">31</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">09</span> <span class="nl">0000060</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">33</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">33</span><span class="w"> </span><span class="mh">2e</span><span class="w"> </span><span class="mh">31</span><span class="w"> </span><span class="mh">34</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">36</span><span class="w"> </span><span class="mh">2e</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">38</span><span class="w"> </span><span class="mh">09</span> <span class="nl">0000070</span><span class="w"> </span><span class="mh">39</span><span class="w"> </span><span class="mh">2e</span><span class="w"> </span><span class="mh">34</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="s"> </span> <span class="nl">0000075</span> </pre></div> <p>The leftmost column is the hexadecimal displacement (or address) for the values of the following columns. Each row displays 16 bytes, with the exception of the row containing a single *. The * is used to indicate multiple occurrences of the same display were omitted. The last line displays the number of bytes taken from the input. </p><p>An additional column shows the corresponding <a href="/wiki/ASCII" title="ASCII">ASCII</a> character translation with <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">hexdump -C</code> or <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">hd</code>: </p> <div class="mw-highlight mw-highlight-lang-hexdump mw-content-ltr" dir="ltr"><pre><span></span><span class="nl">00000000</span><span class="w"> </span><span class="mh">30</span><span class="w"> </span><span class="mh">31</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">33</span><span class="w"> </span><span class="mh">34</span><span class="w"> </span><span class="mh">35</span><span class="w"> </span><span class="mh">36</span><span class="w"> </span><span class="mh">37</span><span class="w"> </span><span class="mh">38</span><span class="w"> </span><span class="mh">39</span><span class="w"> </span><span class="mh">41</span><span class="w"> </span><span class="mh">42</span><span class="w"> </span><span class="mh">43</span><span class="w"> </span><span class="mh">44</span><span class="w"> </span><span class="mh">45</span><span class="w"> </span><span class="mh">46</span><span class="w"> </span><span class="p">|</span><span class="s">0123456789ABCDEF</span><span class="p">|</span> <span class="nl">00000010</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">2f</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="p">|</span><span class="s">./* ************</span><span class="p">|</span> <span class="nl">00000020</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="p">|</span><span class="s">****************</span><span class="p">|</span> <span class="p">*</span> <span class="nl">00000040</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2f</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">54</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">62</span><span class="w"> </span><span class="mh">6c</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">77</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="p">|</span><span class="s">** */..Table wit</span><span class="p">|</span> <span class="nl">00000050</span><span class="w"> </span><span class="mh">68</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">54</span><span class="w"> </span><span class="mh">41</span><span class="w"> </span><span class="mh">42</span><span class="w"> </span><span class="mh">73</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">28</span><span class="w"> </span><span class="mh">30</span><span class="w"> </span><span class="mh">39</span><span class="w"> </span><span class="mh">29</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">31</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="p">|</span><span class="s">h TABs (09)..1..</span><span class="p">|</span> <span class="nl">00000060</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">33</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">33</span><span class="w"> </span><span class="mh">2e</span><span class="w"> </span><span class="mh">31</span><span class="w"> </span><span class="mh">34</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">36</span><span class="w"> </span><span class="mh">2e</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">38</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="p">|</span><span class="s">2..3..3.14.6.28.</span><span class="p">|</span> <span class="nl">00000070</span><span class="w"> </span><span class="mh">39</span><span class="w"> </span><span class="mh">2e</span><span class="w"> </span><span class="mh">34</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="p">|</span><span class="s">9.42.</span><span class="p">|</span> <span class="nl">00000075</span> </pre></div> <p>This is helpful when trying to locate TAB characters in a file which is expected to use multiple spaces. </p><p>The <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-v</code> option causes <i>hexdump</i> to display all data verbosely: </p> <div class="mw-highlight mw-highlight-lang-hexdump mw-content-ltr" dir="ltr"><pre><span></span><span class="nl">00000000</span><span class="w"> </span><span class="mh">30</span><span class="w"> </span><span class="mh">31</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">33</span><span class="w"> </span><span class="mh">34</span><span class="w"> </span><span class="mh">35</span><span class="w"> </span><span class="mh">36</span><span class="w"> </span><span class="mh">37</span><span class="w"> </span><span class="mh">38</span><span class="w"> </span><span class="mh">39</span><span class="w"> </span><span class="mh">41</span><span class="w"> </span><span class="mh">42</span><span class="w"> </span><span class="mh">43</span><span class="w"> </span><span class="mh">44</span><span class="w"> </span><span class="mh">45</span><span class="w"> </span><span class="mh">46</span><span class="w"> </span><span class="p">|</span><span class="s">0123456789ABCDEF</span><span class="p">|</span> <span class="nl">00000010</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">2f</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="p">|</span><span class="s">./* ************</span><span class="p">|</span> <span class="nl">00000020</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="p">|</span><span class="s">****************</span><span class="p">|</span> <span class="nl">00000030</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="p">|</span><span class="s">****************</span><span class="p">|</span> <span class="nl">00000040</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">2a</span><span class="w"> </span><span class="mh">2f</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">54</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">62</span><span class="w"> </span><span class="mh">6c</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">77</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="p">|</span><span class="s">** */..Table wit</span><span class="p">|</span> <span class="nl">00000050</span><span class="w"> </span><span class="mh">68</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">54</span><span class="w"> </span><span class="mh">41</span><span class="w"> </span><span class="mh">42</span><span class="w"> </span><span class="mh">73</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">28</span><span class="w"> </span><span class="mh">30</span><span class="w"> </span><span class="mh">39</span><span class="w"> </span><span class="mh">29</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">31</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="p">|</span><span class="s">h TABs (09)..1..</span><span class="p">|</span> <span class="nl">00000060</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">33</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">33</span><span class="w"> </span><span class="mh">2e</span><span class="w"> </span><span class="mh">31</span><span class="w"> </span><span class="mh">34</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="mh">36</span><span class="w"> </span><span class="mh">2e</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">38</span><span class="w"> </span><span class="mh">09</span><span class="w"> </span><span class="p">|</span><span class="s">2..3..3.14.6.28.</span><span class="p">|</span> <span class="nl">00000070</span><span class="w"> </span><span class="mh">39</span><span class="w"> </span><span class="mh">2e</span><span class="w"> </span><span class="mh">34</span><span class="w"> </span><span class="mh">32</span><span class="w"> </span><span class="mh">0a</span><span class="w"> </span><span class="p">|</span><span class="s">9.42.</span><span class="p">|</span> <span class="nl">00000075</span> </pre></div> <div class="mw-heading mw-heading2"><h2 id="od">od</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hex_dump&action=edit&section=2" title="Edit section: od"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Od_(Unix)" title="Od (Unix)">od (Unix)</a></div> <p>The POSIX<sup id="cite_ref-POSIX_2-0" class="reference"><a href="#cite_note-POSIX-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> command <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">od</code> can be used to display a hex dump with the <style data-mw-deduplicate="TemplateStyles:r886049734">.mw-parser-output .monospaced{font-family:monospace,monospace}</style><span class="monospaced">-t x2</span> option. </p> <div class="mw-highlight mw-highlight-lang-console mw-content-ltr" dir="ltr"><pre><span></span><span class="gp"># </span>od<span class="w"> </span>-t<span class="w"> </span>x2<span class="w"> </span>tableOfTabs.txt <span class="go">00000000: 1f8b 0808 d2e9 9766 0203 6461 7461 322e </span> <span class="go">00000010: 6269 6e00 0141 02be fd42 5a68 3931 4159 </span> <span class="go">00000020: 2653 59ea 2468 ae00 0017 7fff dadb b7fb </span> <span class="go">00000030: dbff 5ffb f3fb d776 3d6f fffb dbea fdbd </span> <span class="go">00000040: 85db edfc ffa9 7def faaf efdf b001 386c </span> <span class="go">00000050: 1001 a0d0 6d40 01a0 1a00 0006 8006 8000 </span> <span class="go">00000060: 0000 d034 01a1 a34d 0034 3d43 40d0 0d34 </span> <span class="go">00000070: d034 34da 9ea1 b49e a7a8 f29e 5106 4326 </span> <span class="go">00000080: 9a19 1934 d1a0 341a 6234 d018 d468 6834 </span> <span class="go">00000090: 00c9 a308 6434 0000 0308 d068 0680 1900 </span> <span class="go">000000a0: 0034 d068 1a34 d068 c3a7 a41a 0c9a 0d34 </span> <span class="go">000000b0: 641a 0646 8346 4003 4d34 1a68 6806 9a06 </span> <span class="go">000000c0: 9a64 d064 001a 0681 a343 10d0 d00d 1840 </span> <span class="go">000000d0: 01a3 21a0 68c9 a050 008a 0009 619a 9541 </span> <span class="go">000000e0: 25d5 8bc0 0ff3 e679 7fd0 31b2 c784 e7f7 </span> <span class="go">000000f0: 8fcb 33b8 28a5 bf86 4ac4 274f ce21 eeea </span> <span class="go">00000100: 2c19 2633 60e9 ddd1 8d60 18e9 b189 4a94 </span> <span class="go">00000110: 3a14 ee61 ac8d d369 f545 a964 2617 f1fd </span> <span class="go">00000120: 72dc 51d1 e601 1071 745d 846c 4677 4ba2 </span> <span class="go">00000130: 0562 5d79 894a 9150 dfe1 8083 e4c0 896f </span> <span class="go">00000140: b75c d58b 4264 021c 625c c4f2 816a 8907 </span> <span class="go">00000150: 8b80 2b3e 4d2a f1b3 4fb4 6cee a869 1316 </span> <span class="go">00000160: c318 cdb5 b1cd 21c4 a23a 0297 65ae 8a2a </span> <span class="go">00000170: 0cd2 0864 8a47 ed68 48f3 a65f 5803 dc9f </span> <span class="go">00000180: b2e5 bbe0 daac 3d56 8c8b 4181 510f 017f </span> <span class="go">00000190: 1328 9a47 6027 62c1 e4b4 db74 bb3a 9455 </span> <span class="go">000001a0: 07dd fd5b 19b5 e522 32e0 9b3e a3cf 0189 </span> <span class="go">000001b0: 4d9a 5edb 27be 1855 880f 7517 0ec0 a878 </span> <span class="go">000001c0: 2ee0 92a3 e339 4138 5cb7 517a a8b7 4dab </span> <span class="go">000001d0: 8645 a681 214b 7f27 0cee 8ee5 3f4b 3a60 </span> <span class="go">000001e0: 530a 74b2 8acf 9044 e73c ca09 0d28 e5b4 </span> <span class="go">000001f0: 1471 0963 4a9c 3b75 73c0 4057 0c9c d0f2 .</span> <span class="go">00000200: 132a bb2c cc84 29cf 3568 9101 0a77 f033 </span> <span class="go">00000210: 41a4 8cfa f520 3ed5 8a4a 9528 1314 7b32 </span> <span class="go">00000220: 87c6 4825 698a 921e e1da 8f2d 4237 2da1 </span> <span class="go">00000230: 3f68 051d fe05 08cb 096d 4a17 ed35 2130 </span> <span class="go">00000240: 9d75 6c2f a414 8003 e650 ea14 4eb1 5fe2 </span> <span class="go">00000250: ee48 a70a 121d 448d 15c0 8914 1b20 4102 .</span> <span class="go">00000260: 0000</span> </pre></div> <p>Character evaluations can be added with the <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">-c</span> option: </p> <pre>0000000 0 1 2 3 4 5 6 7 8 9 A B C D E F 30 31 32 33 34 35 36 37 38 39 41 42 43 44 45 46 0000020 \n / * * * * * * * * * * * * * 0a 2f 2a 20 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0000040 * * * * * * * * * * * * * * * * 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0000100 * * * / \n \t T a b l e w i t 2a 2a 20 2a 2f 0a 09 54 61 62 6c 65 20 77 69 74 0000120 h T A B s ( 0 9 ) \n \t 1 \t \t 68 20 54 41 42 73 20 28 30 39 29 0a 09 31 09 09 0000140 2 \t \t 3 \n \t 3 . 1 4 \t 6 . 2 8 \t 32 09 09 33 0a 09 33 2e 31 34 09 36 2e 32 38 09 0000160 9 . 4 2 \n 39 2e 34 32 0a 0000165 </pre> <p>In this output the TAB characters are displayed as <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">\t</span> and NEWLINE characters as <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">\n</span>. </p> <div class="mw-heading mw-heading2"><h2 id="DUMP,_DDT_and_DEBUG"><span id="DUMP.2C_DDT_and_DEBUG"></span>DUMP, DDT and DEBUG</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hex_dump&action=edit&section=3" title="Edit section: DUMP, DDT and DEBUG"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In the <a href="/wiki/CP/M" title="CP/M">CP/M</a> 8-bit operating system used on early personal computers, the standard <a href="/w/index.php?title=DUMP_(CP/M_command)&action=edit&redlink=1" class="new" title="DUMP (CP/M command) (page does not exist)">DUMP</a> program would list a file 16 bytes per line with the hex offset at the start of the line and the ASCII equivalent of each byte at the end.<sup id="cite_ref-DR_CPM22_3-0" class="reference"><a href="#cite_note-DR_CPM22-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Pages: 1-41, 5-40–5-46">: 1-41, 5-40–5-46 </span></sup> Bytes outside the standard range of printable ASCII characters (20 to 7E) would be displayed as a single period for visual alignment. This same format was used to display memory when invoking the D command in the standard CP/M <a href="/wiki/Debugger" title="Debugger">debugger</a> <a href="/wiki/DDT_(CP/M_command)" class="mw-redirect" title="DDT (CP/M command)">DDT</a>.<sup id="cite_ref-DR_CPM22_3-1" class="reference"><a href="#cite_note-DR_CPM22-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page: 4-5">: 4-5 </span></sup> Later incarnations of the format (e.g. in the DOS debugger <a href="/wiki/DEBUG_(DOS_command)" class="mw-redirect" title="DEBUG (DOS command)">DEBUG</a>) changed the space between the 8th and 9th byte to a dash, without changing the overall width. </p><p>This notation has been retained in operating systems that were directly or indirectly derived from CP/M, including <a href="/wiki/DR-DOS" title="DR-DOS">DR-DOS</a>, <a href="/wiki/MS-DOS" title="MS-DOS">MS-DOS</a>/<a href="/wiki/PC_DOS" class="mw-redirect" title="PC DOS">PC DOS</a>, <a href="/wiki/OS/2" title="OS/2">OS/2</a> and <a href="/wiki/Windows" class="mw-redirect" title="Windows">Windows</a>. On Linux systems, the command hexcat produces this classic output format, too. The main reason for the design of this format is that it fits the maximum amount of data on a standard 80-character-wide screen or printer, while still being very easy to read and skim visually. </p> <div class="mw-highlight mw-highlight-lang-hexdump mw-content-ltr" dir="ltr"><pre><span></span><span class="nl">1234</span><span class="p">:</span><span class="nl">0000</span><span class="p">:</span><span class="w"> </span><span class="mh">57</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">6B</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">70</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">64</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">2C</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">68</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">66</span><span class="w"> </span><span class="s">Wikipedia, the f</span> <span class="nl">1234</span><span class="p">:</span><span class="nl">0010</span><span class="p">:</span><span class="w"> </span><span class="mh">72</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="mh">63</span><span class="w"> </span><span class="mh">79</span><span class="w"> </span><span class="mh">63</span><span class="w"> </span><span class="mh">6C</span><span class="w"> </span><span class="mh">6F</span><span class="w"> </span><span class="mh">70</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">64</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="s">ree encyclopedia</span> <span class="nl">1234</span><span class="p">:</span><span class="nl">0020</span><span class="p">:</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">68</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="mh">79</span><span class="w"> </span><span class="mh">6F</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">63</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="s">that anyone can</span> <span class="nl">1234</span><span class="p">:</span><span class="nl">0030</span><span class="p">:</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">64</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="mh">00</span><span class="w"> </span><span class="s">edit...........</span> </pre></div> <p>Here the leftmost column represents the address at which the bytes represented by the following columns are located. CP/M and various <a href="/wiki/DOS" title="DOS">DOS</a> systems ran in <a href="/wiki/Real_mode" title="Real mode">real mode</a> on the <a href="/wiki/X86" title="X86">x86</a> <a href="/wiki/CPU" class="mw-redirect" title="CPU">CPUs</a>, where addresses are composed of two parts (base and offset). </p><p>In the above examples the final 00s are non-existent bytes beyond the end of the file. Some dump tools display other characters so that it is clear they are beyond the end of the file, typically using spaces or asterisks, e.g.: </p> <div class="mw-highlight mw-highlight-lang-hexdump mw-content-ltr" dir="ltr"><pre><span></span><span class="nl">1234</span><span class="p">:</span><span class="nl">0000</span><span class="p">:</span><span class="w"> </span><span class="mh">57</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">6B</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">70</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">64</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">2C</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">68</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">66</span><span class="w"> </span><span class="s">Wikipedia, the f</span> <span class="nl">1234</span><span class="p">:</span><span class="nl">0010</span><span class="p">:</span><span class="w"> </span><span class="mh">72</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="mh">63</span><span class="w"> </span><span class="mh">79</span><span class="w"> </span><span class="mh">63</span><span class="w"> </span><span class="mh">6C</span><span class="w"> </span><span class="mh">6F</span><span class="w"> </span><span class="mh">70</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">64</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="s">ree encyclopedia</span> <span class="nl">1234</span><span class="p">:</span><span class="nl">0020</span><span class="p">:</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">68</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="mh">79</span><span class="w"> </span><span class="mh">6F</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">63</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="s">that anyone can</span> <span class="nl">1234</span><span class="p">:</span><span class="nl">0030</span><span class="p">:</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">64</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="s">edit</span> </pre></div> <p>or </p> <div class="mw-highlight mw-highlight-lang-hexdump mw-content-ltr" dir="ltr"><pre><span></span><span class="nl">1234</span><span class="p">:</span><span class="nl">0000</span><span class="p">:</span><span class="w"> </span><span class="mh">57</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">6B</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">70</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">64</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">2C</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">68</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">66</span><span class="w"> </span><span class="s">Wikipedia, the f</span> <span class="nl">1234</span><span class="p">:</span><span class="nl">0010</span><span class="p">:</span><span class="w"> </span><span class="mh">72</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="mh">63</span><span class="w"> </span><span class="mh">79</span><span class="w"> </span><span class="mh">63</span><span class="w"> </span><span class="mh">6C</span><span class="w"> </span><span class="mh">6F</span><span class="w"> </span><span class="mh">70</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">64</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="s">ree encyclopedia</span> <span class="nl">1234</span><span class="p">:</span><span class="nl">0020</span><span class="p">:</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">68</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="mh">79</span><span class="w"> </span><span class="mh">6F</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">63</span><span class="w"> </span><span class="mh">61</span><span class="w"> </span><span class="mh">6E</span><span class="w"> </span><span class="s">that anyone can</span> <span class="nl">1234</span><span class="p">:</span><span class="nl">0030</span><span class="p">:</span><span class="w"> </span><span class="mh">20</span><span class="w"> </span><span class="mh">65</span><span class="w"> </span><span class="mh">64</span><span class="w"> </span><span class="mh">69</span><span class="w"> </span><span class="mh">74</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="err">**</span><span class="w"> </span><span class="s">edit</span> </pre></div> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hex_dump&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Hex_editor" title="Hex editor">Hex editor</a></li> <li><a href="/wiki/Core_dump" title="Core dump">Core dump</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hex_dump&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-COMPSCI_2017-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-COMPSCI_2017_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFLiberatore2017" class="citation web cs1">Liberatore, Marc (Spring 2017). <a rel="nofollow" class="external text" href="https://people.cs.umass.edu/~liberato/courses/2017-spring-compsci365/assignments/02-hexdump/">"02: hexdump"</a>. <i>COMPSCI 365/590F</i>. Digital Forensics. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20231029142742/https://people.cs.umass.edu/~liberato/courses/2017-spring-compsci365/assignments/02-hexdump/">Archived</a> from the original on 2023-10-29<span class="reference-accessdate">. Retrieved <span class="nowrap">2022-09-05</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=COMPSCI+365%2F590F&rft.atitle=02%3A+hexdump&rft.ssn=spring&rft.date=2017&rft.aulast=Liberatore&rft.aufirst=Marc&rft_id=https%3A%2F%2Fpeople.cs.umass.edu%2F~liberato%2Fcourses%2F2017-spring-compsci365%2Fassignments%2F02-hexdump%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHex+dump" class="Z3988"></span></span> </li> <li id="cite_note-POSIX-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-POSIX_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.unix.com/man-page/posix/1p/od/">"POSIX"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-10-29</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=POSIX&rft_id=https%3A%2F%2Fwww.unix.com%2Fman-page%2Fposix%2F1p%2Fod%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHex+dump" class="Z3988"></span></span> </li> <li id="cite_note-DR_CPM22-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-DR_CPM22_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-DR_CPM22_3-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="http://www.cpm.z80.de/manuals/cpm22-m.pdf"><i>CP/M Operating System Manual</i></a> <span class="cs1-format">(PDF)</span> (3 ed.). Pacific Grove, California, USA: <a href="/wiki/Digital_Research" title="Digital Research">Digital Research</a>. September 1983. pp. 1-41, 4-5, 5-40–5-46. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20230401040120/http://www.cpm.z80.de/manuals/cpm22-m.pdf">Archived</a> <span class="cs1-format">(PDF)</span> from the original on 2023-04-01<span class="reference-accessdate">. Retrieved <span class="nowrap">2023-10-29</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=CP%2FM+Operating+System+Manual&rft.place=Pacific+Grove%2C+California%2C+USA&rft.pages=1-41%2C+4-5%2C+5-40-5-46&rft.edition=3&rft.pub=Digital+Research&rft.date=1983-09&rft_id=http%3A%2F%2Fwww.cpm.z80.de%2Fmanuals%2Fcpm22-m.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHex+dump" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hex_dump&action=edit&section=6" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://Real-World-Systems.com/docs/hexdump.1.html">How to Use the Hexdump Unix Utility</a> Extensive examples.</li> <li><a rel="nofollow" class="external text" href="https://metacpan.org/release/Data-HexDump-Range">hdr</a> Hexdump with colored ranges to ease visualization. Options to skip data, displaying bitfields, complex range definition, ... follow the link to 'hdr_examples.pod'.</li> <li><a rel="nofollow" class="external text" href="http://www.hex-codes.com">Hex cheatsheet</a> for looking up byte-nibbles and nibble-bits.</li></ul> <!-- NewPP limit report Parsed by mw‐web.codfw.main‐f69cdc8f6‐qmr87 Cached time: 20241122141940 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 0.268 seconds Real time usage: 0.449 seconds Preprocessor visited node count: 1333/1000000 Post‐expand include size: 10326/2097152 bytes Template argument size: 1382/2097152 bytes Highest expansion depth: 15/100 Expensive parser function count: 16/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 48543/5000000 bytes Lua time usage: 0.130/10.000 seconds Lua memory usage: 4014575/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 401.690 1 -total 26.27% 105.509 1 Template:Reflist 25.92% 104.137 1 Template:Short_description 20.86% 83.795 2 Template:Cite_web 13.36% 53.658 2 Template:Pagetype 9.72% 39.049 4 Template:Main_other 9.11% 36.585 1 Template:SDcat 8.67% 34.839 2 Template:Rp 7.21% 28.963 1 Template:Distinguish 5.85% 23.503 2 Template:R/superscript --> <!-- Saved in parser cache with key enwiki:pcache:idhash:1548281-0!canonical and timestamp 20241122141940 and revision id 1249012835. 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