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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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<!-- Documenting T:NAnt.Core.Tasks.EchoTask-->
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<title><echo> Task</title>
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<img alt="->" src="../images/arrow.gif" /> <echo></td>
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v0.85</td>
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<h1><echo></h1>
<p> Writes a message to the build log or a specified file. </p>
<p> The message can be specified using the <code>message</code> attribute or as inline content. </p>
<p> Macros in the message will be expanded. </p>
<p> When writing to a file, the <code>level</code> attribute is ignored. </p>
<h3>Parameters</h3>
<div class="table">
<table>
<tr>
<th>Attribute</th>
<th style="text-align: center;">Type</th>
<th>Description</th>
<th style="text-align: center;">Required</th>
</tr>
<tr>
<td valign="top">append</td>
<td style="text-align: center;">bool</td>
<td> Determines whether the <a href="../tasks/echo.html"><echo></a> task should append to the file, or overwrite it. By default, the file will be overwritten. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">file</td>
<td style="text-align: center;">file</td>
<td> The file to write the message to. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">level</td>
<td style="text-align: center;">
<a href="../enums/NAnt.Core.Level.html">Level</a>
</td>
<td> The logging level with which the message should be output. The default is <code>Info</code>. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">message</td>
<td style="text-align: center;">string</td>
<td> The message to output. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">failonerror</td>
<td style="text-align: center;">bool</td>
<td> Determines if task failure stops the build, or is just reported. The default is <b>true</b>. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">if</td>
<td style="text-align: center;">bool</td>
<td> If <b>true</b> then the task will be executed; otherwise, skipped. The default is <b>true</b>. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">unless</td>
<td style="text-align: center;">bool</td>
<td> Opposite of <code>if</code>. If <b>false</b> then the task will be executed; otherwise, skipped. The default is <b>false</b>. </td>
<td style="text-align: center;">False</td>
</tr>
<tr>
<td valign="top">verbose</td>
<td style="text-align: center;">bool</td>
<td> Determines whether the task should report detailed build log messages. The default is <b>false</b>. </td>
<td style="text-align: center;">False</td>
</tr>
</table>
</div>
<h3>Examples</h3>
<ul class="examples">
<li>
<p> Writes a message with level <code>Debug</code> to the build log. </p>
<pre class="code">
<echo message="Hello, World!" level="Debug" />
</pre>
</li>
<li>
<p> Writes a message with expanded macro to the build log. </p>
<pre class="code">
<echo message="Base build directory = ${nant.project.basedir}" />
</pre>
</li>
<li>
<p> Functionally equivalent to the previous example. </p>
<pre class="code">
<echo>Base build directory = ${nant.project.basedir}</echo>
</pre>
</li>
<li>
<p> Writes the previous message to a file in the project directory, overwriting the file if it exists. </p>
<pre class="code">
<echo file="buildmessage.txt">Base build directory = ${nant.project.basedir}</echo>
</pre>
</li>
</ul>
<h3>Requirements</h3>
<div style="margin-left: 20px;">
<b>Assembly:</b> NAnt.Core (0.85.2478.0)
</div>
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