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<h1>How to Create and Apply Patches</h1>
<p class="posted text-light">10th October 2010</p>
<p>To begin with, a download a fresh copy of Drupal 6.19 and created a copy of the original user.pages.inc file. Within the duplicate file, I made the same changes to the function that I did in earlier code, and saved the changes. Now, within my Terminal, I can navigate to Drupal's root directory and create the patch.</p>
<pre><code class="language-bash">diff -rup modules/user/user.pages.inc modules/user/user.pages2.inc &gt; /Users/oliver/Desktop/different_messages_for_blocked_users.patch
</code></pre>
<p>This command compares the differences between the two files, and creates the specified patch file.</p>
<p>To apply the patch to my Drupal installation, I go back to Terminal and run the following code:</p>
<pre><code class="language-bash">patch -p0 &lt; /Users/oliver/Desktop/different_messages_for_blocked_users.patch
</code></pre>
<p>If, for some reason, I need to reverse the patch, I can run this code:</p>
<pre><code class="language-bash">patch -p0 -R &lt; /Users/oliver/Desktop/different_messages_for_blocked_users.patch
</code></pre>
<p>And that's it!</p>
<p>There is also a Git patch creation workflow, which is described at <a href="http://groups.drupal.org/node/91424">http://groups.drupal.org/node/91424</a>. Thanks to <a href="http://randyfay.com">Randy Fay</a> for making me aware of this, and suggesting a slight change to my original patch creation command.</p>
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<a href="https://www.oliverdavies.uk/blog/tags/drupal-planet">drupal-planet</a>, <a href="https://www.oliverdavies.uk/blog/tags/drupal-6">drupal-6</a>, <a href="https://www.oliverdavies.uk/blog/tags/modules">modules</a>, <a href="https://www.oliverdavies.uk/blog/tags/patches">patches</a> </p>
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<p>Oliver Davies is a Web Developer, System Administrator and Drupal specialist based in the UK. He is a Senior Developer at <a href="https://microserve.io">Microserve</a> and also provides freelance consultancy services for Drupal websites, PHP applications and Linux servers.</p>
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