title: How to access log4net appender file value and replace in the azure pipelines
body: <p>I am trying to replace log file path from pipeline</p>
  <pre><code>&lt;configuration&gt;
   &lt;configSections&gt;
    &lt;applicationSettings&gt;
     &lt;log4net debug=&quot;true&quot;&gt;
      &lt;appender name=&quot;appender1&quot;&gt;
          &lt;file value=&quot;log.txt&quot;/&gt;
      &lt;/appender&gt;
     &lt;/log4net&gt;
    &lt;/applicationSettings&gt;
   &lt;/configSections&gt;
  &lt;/configuration&gt;
  </code></pre>
  <p>I am using <code>FileTransform</code> task to achieve this.
  How to access log4net appender file value and replace in the azure pipelines
  What and How should be the &quot;Name&quot; to be set in the variable.
  I want the &quot;Value&quot; to be set as &quot;D:\Logs\log.txt&quot;. Thanks.</p>