2002-11-07 15:59:47 +00:00
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<head>
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<meta http-equiv="Content-Language" content="en-us">
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2005-03-07 18:11:14 +00:00
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<link rel="stylesheet" type="text/css" href="../stylesheets/style.css"/>
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2002-11-07 15:59:47 +00:00
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<title>Chown Task</title>
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</head>
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<body>
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<h2><a name="Chown">Chown</a></h2>
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<p><em>Since Ant 1.6.</em></p>
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<h3>Description</h3>
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<p>Changes the owner of a file or all files inside specified
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directories. Right now it has effect only under Unix. The owner
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attribute is equivalent to the corresponding argument for the chown
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command.</p>
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2003-06-24 09:16:10 +00:00
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<p><a href="../CoreTypes/fileset.html">FileSet</a>s,
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<a href="../CoreTypes/dirset.html">DirSet</a>s or <a
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href="../CoreTypes/filelist.html">FileList</a>s can be specified using
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nested <code><fileset></code>, <code><dirset></code> and
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<code><filelist></code> elements.</p>
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2002-11-07 15:59:47 +00:00
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2005-03-22 11:11:48 +00:00
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<p>By default this task will use a single invocation of the underlying
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chown command. If you are working on a large number of files this may
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result in a command line that is too long for your operating system.
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If you encounter such problems, you should set the maxparallel
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attribute of this task to a non-zero value. The number to use highly
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depends on the length of your file names (the depth of your directory
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tree) and your operating system, so you'll have to experiment a
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little. POSIX recommends command line length limits of at least 4096
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characters, this may give you an approximation for the number you
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could use as initial value for these experiments.</p>
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<h3>Parameters</h3>
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<table border="1" cellpadding="2" cellspacing="0">
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top">file</td>
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<td valign="top">the file or directory of which the owner must be
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changed.</td>
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<td valign="top" valign="middle">Yes or nested
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<code><fileset/list></code> elements.</td>
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</tr>
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<tr>
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<td valign="top">owner</td>
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<td valign="top">the new owner.</td>
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<td valign="top" align="center">Yes</td>
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</tr>
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<tr>
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<td valign="top">parallel</td>
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<td valign="top">process all specified files using a single
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<code>chown</code> command. Defaults to true.</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top">type</td>
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<td valign="top">One of <i>file</i>, <i>dir</i> or
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<i>both</i>. If set to <i>file</i>, only the owner of
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plain files are going to be changed. If set to <i>dir</i>, only
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the directories are considered.<br>
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<strong>Note:</strong> The type attribute does not apply to
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nested <i>dirset</i>s - <i>dirset</i>s always implicitly
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assume type to be <i>dir</i>.</td>
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<td align="center" valign="top">No, default is <i>file</i></td>
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</tr>
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<tr>
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<td valign="top">maxparallel</td>
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<td valign="top">Limit the amount of parallelism by passing at
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most this many sourcefiles at once. Set it to <= 0 for
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unlimited. Defaults to unlimited.</td>
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<td align="center" valign="top">No</td>
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</tr>
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<tr>
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<td valign="top">verbose</td>
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<td valign="top">Whether to print a summary after execution or not.
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Defaults to <code>false</code>.</td>
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<td align="center" valign="top">No</td>
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</tr>
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</table>
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<h3>Examples</h3>
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<blockquote><pre>
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<chown file="${dist}/start.sh" owner="coderjoe"/>
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</pre>
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</blockquote>
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<p>makes the "start.sh" file belong to coderjoe on a
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UNIX system.</p>
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<blockquote>
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<pre>
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<chown owner="coderjoe">
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<fileset dir="${dist}/bin" includes="**/*.sh"/>
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</chown>
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</pre>
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</blockquote>
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<p>makes all ".sh" files below <code>${dist}/bin</code>
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belong to coderjoe on a UNIX system.</p>
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<blockquote>
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<pre>
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<chown owner="coderjoe">
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<fileset dir="shared/sources1">
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<exclude name="**/trial/**"/>
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</fileset>
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<fileset refid="other.shared.sources"/>
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</chown>
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</pre>
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</blockquote>
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<p>makes all files below <code>shared/sources1</code> (except those
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below any directory named trial) belong to coderjoe on a UNIX
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system. In addition all files belonging to a FileSet
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with <code>id</code> <code>other.shared.sources</code> get the same
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owner.</p>
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2003-06-24 09:16:10 +00:00
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<blockquote>
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<pre>
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<chown owner="webadmin" type="file">
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<fileset dir="/web">
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<include name="**/*.cgi"/>
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<include name="**/*.old"/>
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</fileset>
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<dirset dir="/web">
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<include name="**/private_*"/>
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</dirset>
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</chmod>
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</pre>
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</blockquote>
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<p>makes cgi scripts, files with a <code>.old</code> extension or
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directories beginning with <code>private_</code> belong to the user named
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webadmin. A directory ending in <code>.old</code> or a file beginning with
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<code>private_</code> would remain unaffected.</p>
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2002-11-07 15:59:47 +00:00
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<hr>
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<p align="center">Copyright © 2002-2003,2005 Apache Software
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Foundation. All rights Reserved.</p>
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</body>
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</html>
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