[转贴] Undocummented info of FOR %~a expansion

HAT

In FOR commands %%~aI expands %%I to the file attributes of a file.

In the Windows NT family there are at least 14 attributes for files or directories.
FOR's %%~aI only recognizes 9 attributes.

The expansion of attribute of file is a series of 9 dashes.
Each recognized attribute replaces a dash with a letter.

A file without recognized attributes or without attributes is expanded like this: ---------

This is the list of recognized attributes by for command and your expansion:

  

Expansion	Attribute	HAT注
d--------	FILE_ATTRIBUTE_DIRECTORY	目录
-r-------	FILE_ATTRIBUTE_READONLY	只读文件
--a------	FILE_ATTRIBUTE_ARCHIVE	归档文件
---h-----	FILE_ATTRIBUTE_HIDDEN	隐藏文件
----s----	FILE_ATTRIBUTE_SYSTEM	系统文件
-----c---	FILE_ATTRIBUTE_COMPRESSED	压缩文件
------o--	FILE_ATTRIBUTE_OFFLINE	离线文件
-------t-	FILE_ATTRIBUTE_TEMPORARY	临时文件
--------l	FILE_ATTRIBUTE_REPARSE_POINT	重新分析点

This is a list of not recognized attributes by for command:

FILE_ATTRIBUTE_NORMAL
FILE_ATTRIBUTE_ENCRYPTED
FILE_ATTRIBUTE_NOT_CONTENT_INDEXED
FILE_ATTRIBUTE_SPARSE_FILE

Note:         FILE_ATTRIBUTE_NORMAL is the same as a file without attributes.
Example:         Expansion of a file with attributes hidden and system is: ---hs----

转自：http://www.robvanderwoude.com/ntforfileattributes.php
参考：http://msdn.microsoft.com/zh-cn/library/system.io.fileattributes%28v=vs.80%29.aspx