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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>chattr</title><link rel="stylesheet" type="text/css" href="docbook.css"><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="cygwin-ug-net.html" title="Cygwin User's Guide"><link rel="up" href="using-utils.html" title="Cygwin Utilities"><link rel="prev" href="using-utils.html" title="Cygwin Utilities"><link rel="next" href="cygcheck.html" title="cygcheck"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">chattr</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using-utils.html">Prev</a> </td><th width="60%" align="center">Cygwin Utilities</th><td width="20%" align="right"> <a accesskey="n" href="cygcheck.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="chattr"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>chattr — Change file attributes</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">chattr</code> [-RVf] [
{ + | - | = }
<em class="replaceable"><code>MODE</code></em>
...] [<em class="replaceable"><code>FILE</code></em>...]</p></div><div class="cmdsynopsis"><p><code class="command">chattr</code> -H | -v </p></div></div><div class="refsect1"><a name="chattr-options"></a><h2>Options</h2><pre class="screen">
-R, --recursive recursively apply the changes to directories and
their contents
-V, --verbose Be verbose during operation
-f, --force suppress error messages
-H, --help this help text
-v, --version display the program version
</pre></div><div class="refsect1"><a name="chattr-desc"></a><h2>Description</h2><p>The <span class="command"><strong>chattr</strong></span> program allows to change file
attributes, namely DOS attributes, as well as making files sparse,
encrypt or compress them on FS level, or setting directories'
case sensitivity.
</p><p>The format of 'mode' is {+-=}[acCehnprsStu]</p><p>The operator '+' causes the selected attributes to be added to the
existing attributes of the files; '-' causes them to be removed; and
'=' causes them to be the only attributes that the files have.
A single '=' causes all attributes to be removed.</p><p>Supported attributes:</p><pre class="screen">
'r', 'Readonly': file is read-only
'h', 'Hidden': file or directory is hidden
's', 'System': file or directory that the operating system uses
'a', 'Archive': file or directory has the archive marker set
't', 'Temporary': file is being used for temporary storage
'S', 'Sparse': file is sparse
'c', 'Compressed': file or directory is compressed
'n', 'Notindexed': file or directory is not to be indexed by the
content indexing service
'e', 'Encrypted': file is encrypted
'p', 'Pinned': file is pinned
'u', 'Unpinned': file is unpinned
'C', 'Casesensitive': directory is handled case sensitive
</pre></div><div class="refsect1"><a name="chattr-Cprec"></a><h2>Case-sensitive directories</h2><p>Case-sensitive directories are supported starting with
Windows 10 1803. They are only supported on local NTFS filesystems.
</p><p>The system-wide availability of case-sensitive directories
depends on the setting of the registry value of type DWORD called
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem\NtfsEnableDirCaseSensitivity. The value 0 disables case-sensitive directories.
The value 1 enables case-sensitive directories. The value 3
enables case-sensitive directories, too, with the additional
requirement that a directory can only be set to case-sensitive
if it's empty. No other value is supported.</p><p>Removing case-sensitivity on a directory requires that the
directory does not contain files only differing by case.</p><p>Trying to access a case-sensitive directory on a remote NTFS leads
to all kinds of weird errors and is therefore
<span class="emphasis"><em>not</em></span> recommended.</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="using-utils.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="using-utils.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="cygcheck.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Cygwin Utilities </td><td width="20%" align="center"><a accesskey="h" href="cygwin-ug-net.html">Home</a></td><td width="40%" align="right" valign="top"> cygcheck</td></tr></table></div></body></html>
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