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<title>Touch Task</title>
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<h2><a name="touch">Touch</a></h2>
<h3>Description</h3>
<p>Changes the modification time of a file and possibly creates it at
the same time. In addition to working with a single file, this Task
can also work a <a href="../CoreTypes/fileset.html">Fileset</a> (which
also includes directories)
or a <a href="../CoreTypes/filelist.html">Filelist</a> (since Ant 1.6).</p>
<p>For JDK 1.1 only the creation of new files with a modification time
of now works, all other cases will emit a warning.</p>
<h3>Parameters</h3>
<table border="1" cellpadding="2" cellspacing="0">
  <tr>
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr>
    <td valign="top">file</td>
    <td valign="top">the name of the file</td>
    <td valign="top" align="center">unless a nested fileset element
       or a nested filelist element
       has been specified.</td>
  </tr>
  <tr>
    <td valign="top">millis</td>
    <td valign="top">specifies the new modification time of the file
       in milliseconds since midnight Jan 1 1970</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">datetime</td>
    <td valign="top">specifies the new modification time of the file
       in the format MM/DD/YYYY HH:MM AM_or_PM or MM/DD/YYYY HH:MM:SS AM_or_PM.</td>
    <td valign="top" align="center">No</td>
  </tr>
</table>
<p>If both <code>millis</code> and <code>datetime</code> are omitted
the current time is assumed.</p>
<h3>Examples</h3>
<pre>  &lt;touch file=&quot;myfile&quot;/&gt;</pre>
<p>creates <code>myfile</code> if it doesn't exist and changes the
modification time to the current time.</p>
<pre>  &lt;touch file=&quot;myfile&quot; datetime=&quot;06/28/2000 2:02 pm&quot;/&gt;</pre>
<p>creates <code>myfile</code> if it doesn't exist and changes the
modification time to Jun, 28 2000 2:02 pm (14:02 for those used to 24
hour times).</p>
<pre>  &lt;touch datetime=&quot;09/10/1974 4:30 pm&quot;&gt;
    &lt;fileset dir=&quot;src_dir&quot;/&gt;
  &lt;/touch&gt;</pre>
<p>changes the modification time to Oct, 09 1974 4:30 pm of all files and directories 
  found in <code>src_dir</code>. </p>
<pre>  &lt;touch file=&quot;myfile&quot; datetime=&quot;06/28/2000 2:02:17 pm&quot;/&gt;</pre>
<p>creates <code>myfile</code> if it doesn't exist and changes the
modification time to Jun, 28 2000 2:02:17 pm (14:02:17 for those used to 24
hour times), if the filesystem allows a precision of one second - a
time close to it otherwise.</p>
<hr>
<p align="center">Copyright &copy; 2000-2001,2003-2004 The Apache Software Foundation. All rights
Reserved.</p>

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