https://www.codrut.pro/tags/sha256/ Recent content in Sha256 on Codrut Constantin Gusoi Hugo en Sun, 02 Apr 2023 16:54:33 +0000 https://www.codrut.pro/snippets/how-to-use-sha256sum/ Sun, 02 Apr 2023 16:54:33 +0000 https://www.codrut.pro/snippets/how-to-use-sha256sum/ <h2 id="prerequisites"> Prerequisites <a class="heading-link" href="#prerequisites"> <i class="fa fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h2> <p>Create a basic file:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-sh" data-lang="sh"><span style="display:flex;"><span>echo <span style="color:#e6db74">&#34;abc123&#34;</span> &gt; test123.txt </span></span></code></pre></div><h2 id="digest"> Digest <a class="heading-link" href="#digest"> <i class="fa fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h2> <p>Find the <code>sha256sum</code> of a file with:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-sh" data-lang="sh"><span style="display:flex;"><span>sha256sum test123.txt </span></span></code></pre></div><p>You will get the following result:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-txt" data-lang="txt"><span style="display:flex;"><span>5ecf8d2cc410094e8b82dd0bc178a57f3aa1e80916689beb00fe56148b1b1256 test123.txt </span></span></code></pre></div><blockquote> <p>NOTE: there are 2 spaces between the digest and file name. TWO  SPACES!!!</p></blockquote> <p>Save that result into a file for easy checking:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-sh" data-lang="sh"><span style="display:flex;"><span>sha256sum test123.txt &gt; test123.txt.sha256 </span></span></code></pre></div><h2 id="check"> Check <a class="heading-link" href="#check"> <i class="fa fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h2> <p>If there&rsquo;s a <code>sha256</code> file available, you can do:</p>