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	<title>雨无形的BLOG &#187; 权限</title>
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		<title>linux笔记(1)文件目录权限</title>
		<link>http://www.yuwuxing.com/linux-file-directory-limited/</link>
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		<pubDate>Fri, 03 Jul 2009 07:48:14 +0000</pubDate>
		<dc:creator>雨无形</dc:creator>
				<category><![CDATA[服务器相关]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[权限]]></category>

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		<description><![CDATA[<p>文档目录权限设置<br />- rwx rwx rwx对应的分别是<br />- 文档目录类型（文档&#8220;-&#8221;/目录&#8220;d&#8221;）<br />第一个rwx 文档所有者权限（读&#8220;r&#8221;写&#8220;w&#8221;运行&#8220;x&#8221;）<br />第二个rwx 文档所在群组权限（读&#8220;r&#8221;写&#8220;w&#8221;运行&#8220;x&#8221;）<br />第三个rwx 其它用户权限（读&#8220;r&#8221;写&#8220;w&#8221;运行&#8220;x&#8221;）<br />...</p><table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<p>文档目录权限设置<br />- rwx rwx rwx对应的分别是<br />- 文档目录类型（文档&ldquo;-&rdquo;/目录&ldquo;d&rdquo;）<br />第一个rwx 文档所有者权限（读&ldquo;r&rdquo;写&ldquo;w&rdquo;运行&ldquo;x&rdquo;）<br />第二个rwx 文档所在群组权限（读&ldquo;r&rdquo;写&ldquo;w&rdquo;运行&ldquo;x&rdquo;）<br />第三个rwx 其它用户权限（读&ldquo;r&rdquo;写&ldquo;w&rdquo;运行&ldquo;x&rdquo;）<br />注意目录如果没有x运行权限是无法列出目录的</p>
<p>chgrp ：改变档案所属群组<br />chgrp 群组名称 文档名称</p>
<p>chown ：改变档案所属人<br />chown 所属人 文档名称<br />chown -R 所属人:所属群组 文档名称<br />如果要连目录下的所有次目录或档案同时更改档案拥有者的话，直接加上 &ndash;R 的参数即可</p>
<p>chmod ：改变档案的属性、 SUID 、等等的特性<br />r:4 <br />w:2 <br />x:1 <br />chmod -R xyz 文档名</p>
<p>正规档案( regular file )：就是一般类型的档案，在由 ls &ndash;al 所显示出来的属性方面，第一个属性为 [ - ]。另外，依照档案的内容，又大略可以分为两种档案种类： <br />纯文字文件(ascii) ：这是 Unix 系统中最多的一种啰，几乎只要我们可以用来做为设定的档案都属于这一种； <br />二进制文件(binary) ：通常执行档除了 scripts （文字型批次文件）之外，就是这一种档案格式； <br />　 <br />目录 (directory)：就是目录啦！第一个属性为 [ d ]； <br />　 <br />连结档 (link)：就是类似 Windows 底下的快捷方式啦！第一个属性为 [ l ]； <br />　 <br />设备档 (device)：与系统周边相关的一些档案，通常都集中在 /dev 这个目录之下！通常又分为两种： <br />区块 (block) 设备档 ：就是一些储存数据，以提供系统存取的接口设备，简单的说就是硬盘啦！例如你的一号硬盘的代码是 /dev/hda1 等等的档案啦！第一个属性为 [ b ]； <br />字符 (character) 设备档 ：亦即是一些串行端口的接口设备，例如键盘、鼠标等等！第一个属性为 [ c ]。</p>
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