﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>BlogJava-Jcat-随笔分类-Linux</title><link>http://www.blogjava.net/Jcat/category/11841.html</link><description>宠辱不惊，闲看庭前花开花落～～</description><language>zh-cn</language><lastBuildDate>Wed, 24 Oct 2012 20:41:41 GMT</lastBuildDate><pubDate>Wed, 24 Oct 2012 20:41:41 GMT</pubDate><ttl>60</ttl><item><title>磁盘 磁道 扇区</title><link>http://www.blogjava.net/Jcat/archive/2009/09/14/295027.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Mon, 14 Sep 2009 07:50:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2009/09/14/295027.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/295027.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2009/09/14/295027.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/295027.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/295027.html</trackback:ping><description><![CDATA[扇区（sector）：最小的可寻址单元，512byte<br />磁道（track）：一圈扇区<br />磁柱（cylinder）：一摞磁道<br /><br />每一磁道的扇区数是一样的，但是存储密度不同，外疏内密。<br /><br />为什么要外疏内密？<br />角速度相同时，线速度与半径成正比：<br />硬盘为了提高其轴寿命，轴的转动速度是一定的。磁头在硬盘上读写数据是近乎于圆弧的路线，而越往外，线速度就越快。为了保证读取的准确性只能减小外道的密度使磁头读取数据的时间间隔是相同的。<br /><br /><br />有待研究：早期的磁盘每个磁道上的扇区数目是一样，显然浪费了外圈的容量，后来为了增大磁盘容量采用了新技术，也就是说越往外每磁道扇区数目越多。<br /><br /><img src ="http://www.blogjava.net/Jcat/aggbug/295027.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2009-09-14 15:50 <a href="http://www.blogjava.net/Jcat/archive/2009/09/14/295027.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>块设备 字符设备 裸设备</title><link>http://www.blogjava.net/Jcat/archive/2009/09/14/295008.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Mon, 14 Sep 2009 05:45:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2009/09/14/295008.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/295008.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2009/09/14/295008.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/295008.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/295008.html</trackback:ping><description><![CDATA[
		<b>字符设备</b>：按照字符流的方式被有序访问，不能随机存取，如键盘、串口打印机、磁带。<br /><br /><b>块设备</b>：能够随机（不需要按顺序）访问固定大小数据片（chunks），采用块缓冲技术，如硬盘、软盘、光驱。<br /><br /><b>裸设备</b>：是一种没有经过格式化，不被Unix通过文件系统来读取的特殊字符设备。<br />现在问题来了，Oracle在使用裸设备时（如ASM、甚或表空间直接建在裸设备上），难道还是顺序存取？显然不符合事实。<br />其实，说裸设备是字符设备，只是从操作系统的角度来说的；从使用裸设备的应用程序（如Oracle）的角度，还是块设备，Oracle会去对磁盘进行分块管理。<br /><br /><b>逻辑卷</b>是逻辑概念，可以包含多块物理硬盘，实现了存储跨盘功能，同时提供了数据复制机制，提供了数据安全保护机制。<br /><br />--------------<br /><br />裸设备适用于每次改动数据较小、需大量并发交易，OLTP；<br />对于大规模顺序读写，裸设备性能是最差的，所以对OLAP，应使用块设备或卷。<br /><br /><img src ="http://www.blogjava.net/Jcat/aggbug/295008.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2009-09-14 13:45 <a href="http://www.blogjava.net/Jcat/archive/2009/09/14/295008.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>硬链接 软链接</title><link>http://www.blogjava.net/Jcat/archive/2009/07/14/286743.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 14 Jul 2009 09:40:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2009/07/14/286743.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/286743.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2009/07/14/286743.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/286743.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/286743.html</trackback:ping><description><![CDATA[硬链接<br />[oracle@dcm ~]$ ln original.file hard.link<br /><br />软链接<br />[oracle@dcm ~]$ ln <b><font color="#0000ff">-s</font></b> original.file soft.link<br /><br /><br />[oracle@dcm ~]$ ls -l<br />-rw-r--r-- <font color="#ff0000">2</font> oracle oinstall    4 Jul 14 17:21 original.file<br />-rw-r--r-- <font color="#ff0000">2</font> oracle oinstall    4 Jul 14 17:21 hard.link<br />lrwxrwxrwx 1 oracle oinstall   13 Jul 14 17:23 <font color="#0000ff">soft.link -&gt; original.file<br /><br /><font color="#ff0000">链接数只是和硬链接相关的一个概念<font color="#0000ff"><br />从链接文件可以跟踪到软链接的指向（无法反向跟踪）</font><br /><br /><br /><font color="#000000">---------------</font><br /></font></font><font color="#ff0000">由于inode这种文件系统结构不是双向的，不能查找一个inode被reference了多少次。我们只能通过一些技巧来</font><font color="#0000ff"><font color="#ff0000"><font color="#ff1493"><font color="#ff0000">跟踪硬链接。</font><br /><font color="#000000">1. 通过链接数，我们可以知道哪个文件有硬链接（大于1）<br /></font></font></font></font><font color="#000000">2. 查找该文件的inode id<br />[oracle@dcm ~]$ ls -i hard.link <br />1573158 hard.link<br />3. 通过inode id查找文件（如果需要遍历的目录很多，速度自然可想而知）<br />
[oracle@dcm ~]$ find -inum 1573158<br />./hard.link<br />./original.file<br />4. 硬链接本质上是多个dentry指向同一个inode，所以并没有主从之分，每个dentry都是平等的。</font><br /><img src ="http://www.blogjava.net/Jcat/aggbug/286743.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2009-07-14 17:40 <a href="http://www.blogjava.net/Jcat/archive/2009/07/14/286743.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Solaris的版本号</title><link>http://www.blogjava.net/Jcat/archive/2009/03/13/259505.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Fri, 13 Mar 2009 04:19:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2009/03/13/259505.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/259505.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2009/03/13/259505.html#Feedback</comments><slash:comments>2</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/259505.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/259505.html</trackback:ping><description><![CDATA[
		<b>SunOS</b>是Sun的操作系统最初叫法，SunOS主要是基于BSDUnix版本；<br />SunOS
5.0开始，SUN的操作系统开发开始转向System V Release 4，并且有了新的名字叫做<b>Solaris</b><b>2.0</b>；<br />Solaris
2.6以后,SUN删除了版本号中的"2，因此，SunOS 5.10就叫做<b>Solaris 10</b>。
<br /><br />最后"SunOS"这个词被用做专指Solaris操作系统的内核；而Solaris被认为是由SunOS，图形化的桌面计算环境,
以及它网络增强部分组成。<br /> <br />
　　<br />---Solaris与Sunos的版本转换--- <br /><font color="#0000ff">Solaris 10 = SunOS 5.10<br />Solaris 9 = SunOS 5.9<br />Solaris 8 = SunOS 5.8<br />Solaris 7 = SunOS 5.7</font><br /><font color="#a52a2a">Solaris 2.6 = SunOS 5.6<br />Solaris 2.5 = Sunos 5.5</font><br />
　　<br /><br />------------------<br />Solaris也有分服务器版和个人版，它们分别是： <br />  
服务器版：sparc <br />  
个人版：x86 <br />
虽然Solaris在SPARC上拥有强大的处理能力和硬件支持，但是在Intel x86上性能却未如人意。 <img src ="http://www.blogjava.net/Jcat/aggbug/259505.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2009-03-13 12:19 <a href="http://www.blogjava.net/Jcat/archive/2009/03/13/259505.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Linux Filesystem Hierarchy</title><link>http://www.blogjava.net/Jcat/archive/2008/06/02/205441.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Mon, 02 Jun 2008 15:25:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2008/06/02/205441.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/205441.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2008/06/02/205441.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/205441.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/205441.html</trackback:ping><description><![CDATA[/bin    binary<br />该目录沿袭了UNIX系统的结构，存放着使用者最经常使用的命令。例如cp、ls、cat....<br /><br />/boot<br />存放着启动Linux时使用的一些核心文件。<br /><br />/dev    device<br />
这个目录下是所有Linux的外部设备，其功能类似DOS下的.sys和Win下的.vxd。在Linux中设备和文件是用同种方法访问的。例如：/dev/hda代表第一个物理IDE硬盘。<br /><br /><b>/etc</b>    etcetera<br />这个目录用来存放系统管理所需要的（杂七杂八的）<font color="#ff0000">配置文件</font>。<br /><br />/home<br />用户的主目录，比如说有个用户叫sybase，那他的主目录就是/home/sybase也可以用~sybase表示。<br /><br />/lib<br />这个目录里存放着系统最基本的动态链接共享库，其作用类似于Windows里的.dll文件。几乎所有的应用程序都须要用到这些共享库。<br /><br />/lost+found<br />这个目录平时是空的，当系统不正常关机后，这里就成了一些无家可归的文件的避难所。有点类似于DOS下的.chk文件。<br /><br />/mnt    mount<br />存放临时的映射文件系统，我们常把软驱和光驱挂装在这里的floppy和cdrom子目录下。 <br /><br /><b>/opt</b>    optional<br />这个目录是一些大型软件的安装目录（如Sybase），或者是一些服务程序的安装目录，一般情况下这是个空目录。<br /><br />/proc    procedure<br />这个目录是一个虚拟的目录，它是系统内存的映射，我们可以通过直接访问这个目录来获取系统信息。也就是说，这个目录的内容不在硬盘上而是在内存里。<br /><br />/root<br />系统管理员（也叫超级用户）的主目录。作为系统的拥有者，总要有些特权啊！比如单独拥有一个目录。<br /><br />/sbin<br />s就是Super User的意思，也就是说这里存放的是系统管理员使用的管理程序。<br /><br />/tmp<br />存放临时文件<br /><br />/usr<br />包含了一般不需要修改的应用程序，命令程序文件、程序库、手册和其它文档。这是最庞大的目录，我们要用到的应用程序和文件几乎都存放在这个目录下。<br /><br />/var<br />包
含系统产生的经常变化的文件，例如打印机、邮件、新闻等假<font color="#ff0000">脱机目录、日志文件</font>、格式化后的手册页以及一些应用程序的数据文件等等。建议单独的放在一个分
区。为了保持/usr的相对稳定，那些经常被修改的文件可以放在这个目录下，比如系统的日志文件就在/var/log目录中。<br /><br /><br /><br /><br />-----再进一步谈谈/usr目录-----<br />/usr/X11R6<br />存放X-Window的目录<br /><br />/usr/bin<br />存放增加的用户程序<br /><br />/usr/sbin<br />存放增加的管理程序 <br /><br />/usr/dict <br />存放字典 <br /><br />/usr/doc<br />这是Linux文档的大本营<br /><br />/usr/etc <br />存放设置文件<br /><br />/usr/games <br />存放游戏和教学文件 <br /><br />/usr/include<br />存放C开发工具的头文件<br /><br />/usr/info <br />存放GNU信息文件 <br /><br />/usr/lib<br />存放一些常用的动态链接共享库和静态档案库；<br /><br /><b>/usr/local</b><br />一般是你安装软件的目录，这个目录就相当于在windows下的programefiles这个目录<br /><br />/usr/man<br />存放帮助文件<br /><br />/usr/src<br />Linux开放的源代码就存在这个目录，爱好者们别放过哦！<br /><br />/usr/share <br />
存放结构独立的数据<br /><br /><br /><br /><font color="#ff1493">-------------</font><br /><font color="#ff1493">找到个牛X的东西，</font><a href="http://www.pathname.com/fhs/"><font color="#ff1493">Linux系统目录的规范标准</font></a><br /><img src ="http://www.blogjava.net/Jcat/aggbug/205441.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2008-06-02 23:25 <a href="http://www.blogjava.net/Jcat/archive/2008/06/02/205441.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>不启动图形界面</title><link>http://www.blogjava.net/Jcat/archive/2008/04/22/194740.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 22 Apr 2008 04:47:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2008/04/22/194740.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/194740.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2008/04/22/194740.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/194740.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/194740.html</trackback:ping><description><![CDATA[编辑<font color="#0000ff" face="Courier New"> /etc/inittab </font>文件，找到语句 <font color="#ff0000" face="Courier New">id:5:initdefault:</font><br />5表示启动后直接进入图形界面<br />3表示启动后直接进入文本界面，登录后可用 <font color="#ffa500" face="Courier New">startx</font> 进入图形界面<br /><br /><br />图形界面和文本界面也是可以相互切换的（root权限）<br />    图--&gt;文<font face="Courier New"><font color="#ff1493">    # init 5</font><br /></font>
    文--&gt;图<font color="#ff1493" face="Courier New">    # init 3</font><br /><img src ="http://www.blogjava.net/Jcat/aggbug/194740.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2008-04-22 12:47 <a href="http://www.blogjava.net/Jcat/archive/2008/04/22/194740.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>更改Linux的主机名</title><link>http://www.blogjava.net/Jcat/archive/2008/04/22/194739.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 22 Apr 2008 04:43:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2008/04/22/194739.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/194739.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2008/04/22/194739.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/194739.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/194739.html</trackback:ping><description><![CDATA[1. 修改当前系统的主机名<br /><font face="Courier New"># hostname new_host_name<br /><br /></font>2. 永久修改系统的主机名<br />修改文件 <font face="Courier New">/etc/sysconfig/network</font> ：<br /><font face="Courier New">hostname=new_host_name</font><br /><br />3. 记得修改文件 <font face="Courier New">/etc/hosts</font>，不修改的话，apache等需要解析主机名的服务将不能启动（Sybase的listener也会有问题）<br /><font face="Courier New">127.0.0.1    new_host_name    localhost</font><br /><br />4. 最后就是命令行提示符中的主机名还没有改变，如果很在意的话，重新登录一下就行了<img src ="http://www.blogjava.net/Jcat/aggbug/194739.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2008-04-22 12:43 <a href="http://www.blogjava.net/Jcat/archive/2008/04/22/194739.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>shell if 命令参数说明</title><link>http://www.blogjava.net/Jcat/archive/2008/04/13/192563.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Sun, 13 Apr 2008 07:34:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2008/04/13/192563.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/192563.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2008/04/13/192563.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/192563.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/192563.html</trackback:ping><description><![CDATA[-b    当file存在并且是块文件时返回真<br />-c    当file存在并且是字符文件时返回真<br />-d    当pathname存在并且是一个目录时返回真<br />-e    当pathname指定的文件或目录存在时返回真<br />-f     当file存在并且是正规文件时返回真<br />-g     当由pathname指定的文件或目录存在并且设置了SGID位时返回为真<br />-h     当file存在并且是符号链接文件时返回真，该选项在一些老系统上无效<br />-k     当由pathname指定的文件或目录存在并且设置了“粘滞”位时返回真<br />-p     当file存在并且是命令管道时返回为真<br />-r     当由pathname指定的文件或目录存在并且可读时返回为真<br />-s     当file存在文件大小大于0时返回真<br />-u     当由pathname指定的文件或目录存在并且设置了SUID位时返回真<br />-w    当由pathname指定的文件或目录存在并且可执行时返回真。一个目录为了它的内容被访问必然是可执行的。<br />-o     当由pathname指定的文件或目录存在并且被子当前进程的有效用户ID所指定的用户拥有时返回真。<br /><br />比较字符写法：<br />-eq    等于<br />-ne    不等于<br />-gt     大于<br />-lt      小于<br />-le     小于等于<br />-ge    大于等于<br />-z      空串<br />* =    两个字符相等<br />* !=   两个字符不等<br />* -n   非空串<br /><br /><img src ="http://www.blogjava.net/Jcat/aggbug/192563.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2008-04-13 15:34 <a href="http://www.blogjava.net/Jcat/archive/2008/04/13/192563.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Linux 权限</title><link>http://www.blogjava.net/Jcat/archive/2008/03/25/188538.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 25 Mar 2008 09:25:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2008/03/25/188538.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/188538.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2008/03/25/188538.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/188538.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/188538.html</trackback:ping><description><![CDATA[
		<b>&lt;概述&gt;</b>
		<br />LINUX文件权限针对的对象分三类（互斥的关系）：<br />1. user（文件的拥有者）<br />2. group（文件拥有者所在的组，但不包括user）<br />3. other（其它用户，即user和group以外的）<br /><br />LINUX用一个3位二进制数对应着文件的3种权限（1表示有该权限，0表示无）：<br />第1位    读        r    100    4<br />第2位    写       w    010    2<br />第3位    执行    x    001    1<br /><br /><br /><b>&lt;CMD&gt;</b><br /><font color="#008000">查看权限</font><br /><font face="Courier New"><b>#ls -l</b></font><br /><br /><font color="#0000ff">第一列，一共10位（drwxrwxrwx），就代表了文件的权限：<br />1）第一个d代表是一个目录，如果显示“-”，则说明不是一个目录<br />2）2-4代表user的权限<br />3）5-7代表group的权限<br />4）8-10代表other的权限<br /></font><font color="#808080"><br />对于后9位：<br /><font face="Courier New">r</font> 代表可读（read），其值是4<br /><font face="Courier New">w</font> 代表可写（write），其值是2<br /><font face="Courier New">x</font> 代表可执行（execute），其值是1<br /><font face="Courier New">-</font> 代表没有相应权限，其值是0</font><br /><br /><br /><font color="#008000">修改文件权限</font><br /><font face="Courier New"><b># chmod [ugoa][+-=][rwx] 文件名</b></font><br /><br /><font color="#0000ff">1）用户<br /><font face="Courier New">u</font> 代表user<br /><font face="Courier New">g</font> 代表group<br /><font face="Courier New">o</font> 代表other<br /><font face="Courier New">a</font> 代表全部的人，也就是包括u，g和o<br /><br />2）行动<br /><font face="Courier New">+</font> 表示添加权限<br /><font face="Courier New">-</font> 表示删除权限<br /><font face="Courier New">=</font> 表示使之成为唯一的权限<br /><br />3）权限<br />rwx也可以用数字表示法，不过很麻烦要自己算，比如 rw=6</font><br /><br /><br /><br /><b>&lt;常见权限&gt;<br /></b><font face="Courier New">-rw------- (600) 只有所有者才有读和写的权限<br />-rw-r--r-- (644) 只有所有者才有读和写的权限，组群和其他人只有读的权限<br />-rwx------ (700) 只有所有者才有读，写，执行的权限<br />-rwxr-xr-x (755) 只有所有者才有读，写，执行的权限，组群和其他人只有读和执行的权限<br />-rwx--x--x (711) 只有所有者才有读，写，执行的权限，组群和其他人只有执行的权限<br />-rw-rw-rw- (666) 每个人都有读写的权限<br />-rwxrwxrwx (777) 每个人都有读写和执行的权限，最大权限<br /><br /><br />&lt;trick&gt;<br />如果只拥有一个文件的r权限，也是可以执行它的，只需在最前面加个点加个空格，e.g.：<br /><div style="border: 1px solid rgb(204, 204, 204); padding: 4px 5px 4px 4px; background-color: rgb(238, 238, 238); font-size: 13px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><font face="Verdana"><span style="color: rgb(0, 0, 0);">#. /etc/bashrc</span></font></div><br />通过 <font color="#a52a2a"># man .</font> 可以找到官方的解释：<br /><font color="#a52a2a">. filename [arguments]<br />Read  and  execute  commands from filename in the current shell environment and return the exit status of the last command executed  from  filename.</font><br />其实这也合理：我可以r，就可以把内容copy出来，就可以自己造一个文件来实现同样的功能。 <br /><br /><br /><br />&lt;解读 ls -l 命令&gt;<br /><div style="border: 1px solid rgb(204, 204, 204); padding: 4px 5px 4px 4px; background-color: rgb(238, 238, 238); font-size: 13px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: rgb(0, 0, 0);">d<font color="#ff0000">rwx</font><font color="#0000ff">r-x</font>r-x   2 <font color="#ff0000">root </font><font color="#0000ff">oinstall </font>4096 Jun  6 19:02 oracle<br />d<font color="#ff0000">rwx</font><font color="#0000ff">rwx</font>r-x  20 <font color="#ff0000">root </font><font color="#0000ff">sinstall </font>4096 Apr 22 14:03 sybase<br /></span><span style="color: rgb(0, 0, 0);"></span></div>一个文件（夹），有两个owner<br />1. <font color="#ff0000">user</font><br />2. <font color="#0000ff">group<br /><font color="#000000"><br />创建一个文件时，它默认属于创建它的user，以及这个user所在的group。<br />但</font></font></font><font face="Courier New"><font color="#0000ff"><font color="#000000">这两个owner其实是相互独立的（它们的权限也是相互独立的）：一个文件可以属于user a，并指定它属于非a所在的组B。自然的，组B的成员b也就享有了这个文件。<br />（安装oracle时的用户设置就是很好的例子）<br /><div style="border: 1px solid rgb(204, 204, 204); padding: 4px 5px 4px 4px; background-color: rgb(238, 238, 238); font-size: 13px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: rgb(0, 0, 0);"># chown <font color="#ff0000">user_a</font> file_test<br /># chown <font color="#0000ff"><font color="#ff1493">:</font>group_B</font> file_test<br /></span></div><br /></font></font></font><img src ="http://www.blogjava.net/Jcat/aggbug/188538.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2008-03-25 17:25 <a href="http://www.blogjava.net/Jcat/archive/2008/03/25/188538.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Very Important VI</title><link>http://www.blogjava.net/Jcat/archive/2008/03/25/188518.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 25 Mar 2008 08:42:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2008/03/25/188518.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/188518.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2008/03/25/188518.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/188518.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/188518.html</trackback:ping><description><![CDATA[
		<font face="Verdana">
				<font color="#008000">
						<font color="#808080">&lt;一般模式&gt;</font>
						<br />Undo</font>
				<br />
u<br /><br /><font color="#008000">删除当前行</font><br />
dd<br /><br /><font color="#008000">复制当前行</font><br />
yy<br /><br /><font color="#008000">粘贴</font><br />
p<br /><br /></font>
		<font color="#008000" face="Verdana">进入 和 退出编辑模式</font>
		<br />
		<font face="Verdana">i 和 Esc  <br /><br /></font>
		<font color="#006400" face="Verdana">向前查询</font>
		<br />
		<font face="Verdana">/abc<br /></font>
		<font color="#006400" face="Verdana">向后查询</font>
		<br />
		<font face="Verdana">?abc<br /></font>
		<font color="#006400" face="Verdana">向前继续查询</font>
		<br />
		<font face="Verdana">n<br /></font>
		<font color="#006400" face="Verdana">向后继续查询 </font>
		<br />
		<font face="Verdana">N <br /><br /><br /><font color="#808080">&lt;命令行模式&gt;</font><br /></font>
		<font color="#008000" face="Verdana">write and quit</font>
		<font color="#008000">
				<br />
		</font>
		<font face="Verdana">:wq [文件名--对于创建新文件时需要]<br /></font>
		<font color="#008000" face="Verdana">
				<br />quit without write</font>
		<br />
		<font face="Verdana">:q!<br /></font>
<img src ="http://www.blogjava.net/Jcat/aggbug/188518.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2008-03-25 16:42 <a href="http://www.blogjava.net/Jcat/archive/2008/03/25/188518.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Linux CMD</title><link>http://www.blogjava.net/Jcat/archive/2008/03/25/188515.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 25 Mar 2008 08:34:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2008/03/25/188515.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/188515.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2008/03/25/188515.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/188515.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/188515.html</trackback:ping><description><![CDATA[
		<font color="#808080" face="Verdana">文件相关</font>
		<font face="Verdana">
		</font>
		<font face="Verdana">
				<br />
		</font>
		<font color="#008000" face="Verdana">拷贝文件夹及其所有内容（递归）</font>
		<font face="Verdana">
		</font>
		<font face="Verdana">
				<br /># cp -r 文件夹名 目标路径
		</font>
		<font color="#008000" face="Verdana">
				<br />删除空文件夹</font>
		<font face="Verdana">
		</font>
		<font face="Verdana">
				<br /># rmdir 文件夹名
		</font>
		<font color="#008000" face="Verdana">
				<br />删除非空文件夹</font>
		<font face="Verdana">
		</font>
		<font face="Verdana">
				<br /># rm -rf 文件夹名<br /></font>
		<font color="#008000" face="Verdana">查看隐藏文件</font>
		<font face="Verdana">
		</font>
		<font face="Verdana">
				<br /># ls -a<br /><font color="#008000">更改文件名</font><br /># mv 源文件名 目文件名<br /><font color="#008000">批量更改文件名：Rename the specified files by replacing the first occurrence of <u>from</u> in their name by <u>to</u></font><br /># rename from to file...<br /><font color="#006400">查看文件类型（Linux并不是靠后缀来决定文件类型的）</font><br /># file 文件名<br /><br /><br /></font>
		<font color="#808080" face="Verdana">
				用户相关<br /><font color="#008000">查看所有用户 or 所有组<br /></font></font>
		<font color="#006400" face="Verdana">
				<font color="#008000">看第三个参数，500以上的，就是后面建的用户了，其它则为系统用户。</font>
				<br />
		</font>
		<font color="#808080" face="Verdana">
				<font color="#000000"># cat /etc/passwd   or   # cat /etc/group<br /><font color="#008000">滤掉系统用户<br /></font># cat /etc/passwd | grep home<br /></font>
				<font color="#008000">
						<br />删除用户 or 组</font>
				<br />
				<font color="#000000"># userdel 用户名  or  # groupdel 组名</font>
				<br />
				<font color="#008000">更改用户的工作目录</font>
				<br />
				<font color="#000000"># usermod -d 目录路径 用户名<br /><br /><font color="#008000">更改用户所属组，是</font><font color="#ff0000">覆盖</font><br /></font>
		</font>
		<font color="#808080" face="Verdana">
				<font color="#000000"># usermod -<font color="#ff0000">g</font> 组名 用户名<br /></font>
		</font>
		<font color="#808080" face="Verdana">
				<font color="#000000">
						<font color="#008000">将用户添加到某个组，是<font color="#0000ff">叠加<font color="#008000">，<font color="#ffa500">作为非默认组</font></font></font></font>
						<br /># usermod -<font color="#0000ff">G</font> 组名 用户名<br /><br /></font> <br /><br /><br />系统状态相关<br /><font color="#000000"><font color="#008000">查看进程</font><br /># ps<br /><font color="#008000">进程列表，可以实时刷新的</font><br /># top<br /><font color="#008000">查看端口使用情况</font><br /># netstat</font><br /><br /><br />网络相关<br /><font color="#008000">重启网络连接</font><br /><font color="#000000"># /sbin/service network restart</font><br /><font color="#008000">关闭防火墙</font><br /><font color="#000000"># /sbin/service iptables stop</font><br /></font>
		<font color="#808080" face="Verdana">
				<font color="#008000">查看网卡地址<br /></font>
				<font color="#000000"># ifconfig<br /><font color="#006400">查看网关 </font></font>
		</font>
		<font color="#008000" face="Verdana">（Genmask=0.0.0.0的那个就是网关）</font>
		<font color="#808080" face="Verdana">
				<font color="#000000">
						<br /># netstat -r<br /><font color="#008000">查看DNS</font></font>
		</font>
		<font color="#008000" face="Verdana">（Genmask=0.0.0.0的那个就是网关）<br /></font>
		<font color="#808080" face="Verdana">
				<font color="#000000"># route -n<br /><br /></font>
		</font>
		<font color="#808080" face="Verdana">
				<br />
		</font>
		<font face="Verdana">
				<font color="#808080">其它<br /><font color="#008000">查看命令的路径（比如那些通过PATH而到处都可以运行的命令）</font><br /><font color="#008000"><font color="#000000"># type 命令名</font><br />清屏</font><br /><font color="#000000"># clear</font><br /></font>
		</font>
		<font color="#008000" face="Verdana">关机</font>
		<br />
		<font face="Verdana"># /sbin/shutdown -h now<br /><font color="#008000">一分钟以后关机<br /></font># /sbin/shutdown -h +1<br /></font>
<img src ="http://www.blogjava.net/Jcat/aggbug/188515.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2008-03-25 16:34 <a href="http://www.blogjava.net/Jcat/archive/2008/03/25/188515.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>(z) Linux下常用压缩格式的压缩与解压方法  </title><link>http://www.blogjava.net/Jcat/archive/2006/10/19/76046.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Wed, 18 Oct 2006 16:33:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2006/10/19/76046.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/76046.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2006/10/19/76046.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/76046.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/76046.html</trackback:ping><description><![CDATA[
		<table border="0" cellpadding="0" cellspacing="0" height="100%" width="100%">
				<tbody>
						<tr>
								<td style="border: 1px dashed rgb(127, 124, 117); padding-bottom: 30px; padding-top: 10px;" valign="top">
										<font style="font-size: 16pt;" color="#33339a">
												<b>Linux下常用压缩格式的压缩与解压方法</b>
										</font>
								</td>
						</tr>
						<tr>
								<td style="border: 1px dashed rgb(127, 124, 117);" height="100%" valign="top">
										<p>     大致总结了一下linux下各种格式的压缩包的压缩、解压方法。但是部分方法我没有用到，也就不全，希望大家帮我补充，我将随时修改完善，谢谢！<br />作者：Linux爱好者<br />来自：www.LinuxByte.net<br />最后更新时间：2003-12-1<br /><br /><b><font size="2"><font color="blue">.tar</font></font></b><br />解压：tar xvf FileName.tar<br />压缩：tar cvf FileName.tar DirName<br /><font color="green">（注：tar是打包，不是压缩！）</font><br />---------------------------------------------<br /><b><font size="2"><font color="blue">.gz</font></font></b><br />解压1：gunzip FileName.gz<br />解压2：gzip -d FileName.gz<br />压缩：gzip FileName <br /><b><font size="2"><font color="blue">.tar.gz</font></font></b><br />解压：tar zxvf FileName.tar.gz<br />压缩：tar zcvf FileName.tar.gz DirName<br />--------------------------------------------- <br /><b><font size="2"><font color="blue">.bz2</font></font></b><br />解压1：bzip2 -d FileName.bz2<br />解压2：bunzip2 FileName.bz2<br />压缩： bzip2 -z FileName<br /><b><font size="2"><font color="blue">.tar.bz2</font></font></b><br />解压：tar jxvf FileName.tar.bz2 <br />压缩：tar jcvf FileName.tar.bz2 DirName<br />---------------------------------------------<br /><b><font size="2"><font color="blue">.bz</font></font></b><br />解压1：bzip2 -d FileName.bz <br />解压2：bunzip2 FileName.bz<br />压缩：<font color="orange">未知</font><br /><b><font size="2"><font color="blue">.tar.bz</font></font></b><br />解压：tar jxvf FileName.tar.bz<br />压缩：<font color="orange">未知</font><br />---------------------------------------------<br /><b><font size="2"><font color="blue">.Z</font></font></b><br />解压：uncompress FileName.Z<br />压缩：compress FileName<br /><b><font size="2"><font color="blue">.tar.Z</font></font></b><br />解压：tar Zxvf FileName.tar.Z<br />压缩：tar Zcvf FileName.tar.Z DirName<br />---------------------------------------------<br /><b><font size="2"><font color="blue">.tgz</font></font></b><br />解压：tar zxvf FileName.tgz<br />压缩：<font color="orange">未知</font><br /><b><font size="2">.tar.tgz</font></b><br />解压：tar zxvf FileName.tar.tgz<br />压缩：tar zcvf FileName.tar.tgz FileName<br />---------------------------------------------</p>
										<p>
												<font size="2">
														<b>
																<font color="#0000ff">.a<br /></font>
														</b>
														<font size="3">解压：</font>#tar xv file.a</font>
												<font size="2">
														<br />
														<font size="3">---------------------------------------------</font>
														<br />
														<font color="#0000ff">
																<b>.cpio.gz/.cgz</b>
														</font>
												</font>
										</p>
										<p>
												<font size="2">
														<font size="3">解压：</font>gzip -dc file.cgz | cpio -div</font>
										</p>
										<p>
												<font size="2">
														<font size="3">---------------------------------------------</font>
														<br />
														<b>
																<font color="#0000ff">.cpio/cpio</font>
														</b>
												</font>
										</p>
										<p>
												<font size="2">
														<font size="3">解压：</font>cpio -div file.cpio 或cpio -divc file.cpio</font>
										</p>
										<p>
												<font size="3">---------------------------------------------</font>
										</p>
										<p>
												<font size="2">
														<font color="#0000ff">
																<b>.rpm</b>
														</font>
												</font>
										</p>
										<p>
												<font size="2">安装: rpm -i file.rpm<br /><font size="3">解压：</font>rpm2cpio file.rpm | cpio -div</font>
										</p>
										<p>
												<font size="2">
														<font size="3">---------------------------------------------</font>
														<br />
												</font>
												<font size="2">
														<font color="#0000ff">
																<b>.deb</b>
														</font>
												</font>
										</p>
										<p>
												<font size="2">安装: dpkg -i file.deb</font>
										</p>
										<p>
												<font size="2">
														<font size="3">解压：</font>dpkg-deb --fsys-tarfile file.deb | tar xvf - ar p file.deb data.tar.gz | tar xvzf -<br /><font size="3">---------------------------------------------</font></font>
										</p>
										<p>
												<b>
														<font size="2">
																<font color="blue">.zip</font>
														</font>
												</b>
												<br />解压：unzip FileName.zip<br />压缩：zip FileName.zip DirName<br />---------------------------------------------<br /><b><font size="2"><font color="blue">.rar</font></font></b><br />解压：rar a FileName.rar<br />压缩：rar e FileName.rar<br /><br /><font color="green"><br />rar请到：<a href="http://www.rarsoft.com/download.htm" target="_blank"><font color="#000000">http://www.rarsoft.com/download.htm</font></a> 下载！<br />解压后请将rar_static拷贝到/usr/bin目录（其他由$PATH环境变量指定的目录也可以）：<br />[root@www2 tmp]# cp rar_static /usr/bin/rar</font><br />---------------------------------------------<br /><b><font size="2"><font color="blue">.lha</font></font></b><br />解压：lha -e FileName.lha <br />压缩：lha -a FileName.lha FileName<br /><font color="green"><br />lha请到：<a href="http://www.infor.kanazawa-it.ac.jp/%7Eishii/lhaunix/" target="_blank"><font color="#000000">http://www.infor.kanazawa-it.ac.jp/~ishii/lhaunix/</font></a>下载！<br />解压后请将lha拷贝到/usr/bin目录（其他由$PATH环境变量指定的目录也可以）：<br />[root@www2 tmp]# cp lha /usr/bin/</font><br />---------------------------------------------<br /><b><font size="2"><font color="blue">.tar .tgz .tar.gz .tar.Z .tar.bz .tar.bz2 .zip .cpio .rpm .deb .slp .arj .rar .ace .lha .lzh .lzx .lzs .arc .sda .sfx .lnx .zoo .cab .kar .cpt .pit .sit .sea</font></font></b><br />解压：sEx x FileName.* <br />压缩：sEx a FileName.* FileName<br /><font color="green"><br />sEx只是调用相关程序，本身并无压缩、解压功能，请注意！<br />sEx请到：<a href="http://sourceforge.net/projects/sex" target="_blank"><font color="#000000">http://sourceforge.net/projects/sex</font></a>下载！<br />解压后请将sEx拷贝到/usr/bin目录（其他由$PATH环境变量指定的目录也可以）：<br />[root@www2 tmp]# cp sEx /usr/bin/</font><br /><br /><font color="green"><br />参考文献：<a href="http://www-900.ibm.com/developerWorks/cn/linux/l-tip-prompt/tip07/index.shtml" target="_blank"><font color="#000000">Linux 文件压缩工具指南</font></a><br />（其实看帮助是最好的方法，一般各个命令都可以用“--help”参数得到常用使用方法！）</font><br /></p>
								</td>
						</tr>
				</tbody>
		</table>
<img src ="http://www.blogjava.net/Jcat/aggbug/76046.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2006-10-19 00:33 <a href="http://www.blogjava.net/Jcat/archive/2006/10/19/76046.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>How to install JDK in Linux</title><link>http://www.blogjava.net/Jcat/archive/2006/06/14/52848.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Wed, 14 Jun 2006 13:54:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2006/06/14/52848.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/52848.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2006/06/14/52848.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/52848.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/52848.html</trackback:ping><description><![CDATA[
		<p>
				<font face="Nimbus Roman No9 L, serif">1.
</font>先从网上下载<font face="Nimbus Roman No9 L, serif">jdk(jdk-1_5_0_02-linux-i586-rpm.bin)
</font>，推荐<font face="Nimbus Roman No9 L, serif">SUN</font>的官方网站<font face="Nimbus Roman No9 L, serif"><a href="http://www.sun.com/" target="_blank">www.sun.com</a></font>，下载后放在<font face="Nimbus Roman No9 L, serif">/home</font>目录中，当然其它地方也行。</p>
		<p>2.1 进入安装目录<font face="Nimbus Roman No9 L, serif"><br />#cd
/home<br />#cp jdk-1_5_0_02-linux-i586-rpm.bin /usr/local<br />#cd
/usr/local<br /></font><br />
2.2 给所有用户添加可执行的权限<font face="Nimbus Roman No9 L, serif"><br />#chmod
+x
jdk-1_5_0_02-linux-i586-rpm.bin<br />
解压缩之<br />
#<font color="#ff0000">./jdk-1_5_0_02-linux-i586.rpm.bin<br /><br /></font></font>2.3 此时会生成文件<font face="Nimbus Roman No9 L, serif">jdk-1_5_0_02-linux-i586.rpm</font>，同样给所有用户添加可执行的权限<font face="Nimbus Roman No9 L, serif"><br />#chmod
+x jdk-1_5_0_02-linux-i586.rpm<br /></font>安装程序<font face="Nimbus Roman No9 L, serif"><br />#<font color="#ff0000">rpm
-ivh jdk-1_5_0_02-linux-i586.rpm</font><br /></font>过程出现安装协议等，按接受即可。</p>
		<p>
				<font face="Nimbus Roman No9 L, serif">3.</font> 设置环境变量。<font face="Nimbus Roman No9 L, serif"><br />#vi
<font color="#0000ff">/etc/profile</font><br /></font>在最后面加入
<font face="Nimbus Roman No9 L, serif"><br /><font color="#ff0000">#set
java
environment<br />JAVA_HOME=/usr/java/jdk-1_5_0_02<br />CLASSPATH=.:</font></font><font color="#ff0000">＄<font face="Nimbus Roman No9 L, serif">JAVA_HOME/lib/tools.jar<br />PATH=</font></font><font color="#ff0000">＄<font face="Nimbus Roman No9 L, serif">JAVA_HOME/bin:</font></font><font color="#ff0000">＄<font face="Nimbus Roman No9 L, serif">PATH<br />export
JAVA_HOME CLASSPATH PATH</font><br /></font>保存退出。</p>
		<p>要使<font face="Nimbus Roman No9 L, serif">JDK</font>在所有的用户中使用，可以这样：<font face="Nimbus Roman No9 L, serif"><br />vi
<font color="#0000ff">/etc/profile.d/java.sh</font><br /></font>在新的<font face="Nimbus Roman No9 L, serif">java.sh</font>中输入以上相同的内容<font face="Nimbus Roman No9 L, serif">.<br /></font>保存退出，然后给<font face="Nimbus Roman No9 L, serif">java.sh</font>分配权限：<font face="Nimbus Roman No9 L, serif"><font color="#ff0000">chmod
755 /etc/profile.d/java.sh</font></font></p>
		<p>
				<font face="Nimbus Roman No9 L, serif">4. </font>在终端使用<font face="Nimbus Roman No9 L, serif">echo</font>命令检查环境变量设置情况。<font face="Nimbus Roman No9 L, serif"><br />#echo
</font>＄<font face="Nimbus Roman No9 L, serif">JAVA_HOME<br />#echo
</font>＄<font face="Nimbus Roman No9 L, serif">CLASSPATH<br />#echo
</font>＄<font face="Nimbus Roman No9 L, serif">PATH</font></p>
		<p>
				<font face="Nimbus Roman No9 L, serif">5. </font>检查<font face="Nimbus Roman No9 L, serif">JDK</font>是否安装成功。<font face="Nimbus Roman No9 L, serif"><br />#java
-version<br /></font>如果看到<font face="Nimbus Roman No9 L, serif">JVM</font>版本及相关信息，即安装成功！<br /></p>
		<p>以上摘自<a href="http://www.dreamsea.net/Print.asp?ThreadID=151">轻风清竹</a>!</p>
<img src ="http://www.blogjava.net/Jcat/aggbug/52848.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2006-06-14 21:54 <a href="http://www.blogjava.net/Jcat/archive/2006/06/14/52848.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Collect some abbreviation in Linux</title><link>http://www.blogjava.net/Jcat/archive/2006/06/14/52843.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Wed, 14 Jun 2006 12:48:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2006/06/14/52843.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/52843.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2006/06/14/52843.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/52843.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/52843.html</trackback:ping><description><![CDATA[有个别不是缩略词，但语源很有趣，涉及基本命令，目录，文件，变量等。<br /><br />
/bin = BINaries<br />

/dev = DEVices<br />

/etc = ETCetera<br />

/lib = LIBrary<br />

/proc = PROCesses<br />

/sbin = Superuser BINaries<br />

/tmp = TeMPorary<br />

/usr = Unix Shared Resources<br />

/var = VARiable ?<br />

FIFO = First In, First Out<br />

GRUB = GRand Unified Bootloader<br />

IFS = Internal Field Seperators<br />

LILO = LInux LOader<br />

MySQL = My是最初作者女儿的名字，SQL = Structured Query Language<br />

PHP = Personal Home Page Tools = PHP Hypertext Preprocessor<br />

PS = Prompt String<br />

Perl = "Pratical Extraction and Report Language" = "Pathologically Eclectic Rubbish Lister"<br />

Python 得名于电视剧Monty Python's Flying Circus<br />

Tcl = Tool Command Language<br />

Tk = ToolKit<br />

VT = Video Terminal<br />

YaST = Yet Another Setup Tool<br />

apache = "a patchy" server<br />

apt = Advanced Packaging Tool<br />

ar = archiver<br />

as = assembler<br />

awk = "Aho Weiberger and Kernighan" 三个作者的姓的第一个字母<br />

bash = Bourne Again SHell<br />

bc = Basic (Better) Calculator<br />

bg = BackGround<br />

biff = 作者Heidi Stettner在U.C.Berkely养的一条狗,喜欢对邮递员汪汪叫。<br />

cal = CALendar<br />

cat = CATenate<br />

cd = Change Directory<br />

chgrp = CHange GRouP<br />

chmod = CHange MODe<br />

chown = CHange OWNer<br />

chsh = CHange SHell<br />

cmp = compare<br />

cobra = Common Object Request Broker Architecture<br />

comm = common<br />

cp = CoPy<br />

cpio = CoPy In and Out<br />

cpp = C Pre Processor<br />

cron = Chronos 希腊文时间<br />

cups = Common Unix Printing System<br />

cvs = Current Version System<br />

daemon = Disk And Execution MONitor<br />

dc = Desk Calculator<br />

dd = Disk Dump<br />

df = Disk Free<br />

diff = DIFFerence<br />

dmesg = diagnostic message<br />

du = Disk Usage<br />

ed = editor<br />

egrep = Extended GREP<br />

elf = Extensible Linking Format<br />

elm = ELectronic Mail<br />

emacs = Editor MACroS<br />

eval = EVALuate<br />

ex = EXtended<br />

exec = EXECute<br />

fd = file descriptors<br />

fg = ForeGround<br />

fgrep = Fixed GREP<br />

fmt = format<br />

fsck = File System ChecK<br />

fstab = FileSystem TABle<br />

fvwm = F*** Virtual Window Manager<br />

gawk = GNU AWK<br />

gpg = GNU Privacy Guard<br />

groff = GNU troff<br />

hal = Hardware Abstraction Layer<br />

joe = Joe's Own Editor<br />

ksh = Korn SHell<br />

lame = Lame Ain't an MP3 Encoder<br />

lex = LEXical analyser<br />

lisp = LISt Processing = Lots of Irritating Superfluous Parentheses<br />

ln = LiNk<br />

lpr = Line PRint<br />

ls = list<br />

lsof = LiSt Open Files<br />

m4 = Macro processor Version 4<br />

man = MANual pages<br />

mawk = Mike Brennan's AWK<br />

mc = Midnight Commander<br />

mkfs = MaKe FileSystem<br />

mknod = MaKe NODe<br />

motd = Message of The Day<br />

mozilla = MOsaic GodZILLa<br />

mtab = Mount TABle<br />

mv = MoVe<br />

nano = Nano's ANOther editor<br />

nawk = New AWK<br />

nl = Number of Lines<br />

nm = names<br />

nohup = No HangUP<br />

nroff = New ROFF<br />

od = Octal Dump<br />

passwd = PASSWorD<br />

pg = pager<br />

pico = PIne's message COmposition editor<br />

pine = "Program for Internet News &amp; Email" = "Pine is not Elm"<br />

ping = 拟声 又 = Packet InterNet Grouper<br />

pirntcap = PRINTer CAPability<br />

popd = POP Directory<br />

pr = pre<br />

printf = PRINT Formatted<br />

ps = Processes Status<br />

pty = pseudo tty<br />

pushd = PUSH Directory<br />

pwd = Print Working Directory<br />

rc = runcom = run command, rc还是plan9的shell<br />

rev = REVerse<br />

rm = ReMove<br />

rn = Read News<br />

roff = RunOFF<br />

rpm = RPM Package Manager = RedHat Package Manager<br />

rsh, rlogin, rvim中的r = Remote<br />

rxvt = ouR XVT<br />

seamoneky = 我<br />

sed = Stream EDitor<br />

seq = SEQuence<br />

shar = SHell ARchive<br />

slrn = S-Lang rn<br />

ssh = Secure SHell<br />

ssl = Secure Sockets Layer<br />

stty = Set TTY<br />

su = Substitute User<br />

svn = SubVersioN<br />

tar = Tape ARchive<br />

tcsh = TENEX C shell<br />

tee = T (T形水管接口)<br />

telnet = TEminaL over Network<br />

termcap = terminal capability<br />

terminfo = terminal information<br />

tex = τέχνη的缩写，希腊文art<br />

tr = traslate<br />

troff = Typesetter new ROFF<br />

tsort = Topological SORT<br />

tty = TeleTypewriter<br />

twm = Tom's Window Manager<br />

tz = TimeZone<br />

udev = Userspace DEV<br />

ulimit = User's LIMIT<br />

umask = User's MASK<br />

uniq = UNIQue<br />

vi = VIsual = Very Inconvenient<br />

vim = Vi IMproved<br />

wall = write all<br />

wc = Word Count<br />

wine = WINE Is Not an Emulator<br />

xargs = eXtended ARGuments<br />

xdm = X Display Manager<br />

xlfd = X Logical Font Description<br />

xmms = X Multimedia System<br />

xrdb = X Resources DataBase<br />

xwd = X Window Dump<br />

yacc = yet another compiler compiler<br /><br /><br /><a href="http://www.gnu.org/fun/jokes/gnuemacs.acro.exp.htm" target="_blank">http://www.gnu.org/fun/jokes/gnuemacs.acro.exp.htm</a><br />
emacs: Escape Meta Alt Ctrl Shift<br />


emacs: EMACS Makes A Computer Slow<br /><br /><br />

			
				The novice Unix user is always surprised by Unix’s choice of command<br />

names. No amount of training on DOS or the Mac prepares one for the<br />

majestic beauty of cryptic two-letter command names such as cp, rm, and<br />

ls.<br />

Those of us who used early 70s I/O devices suspect the degeneracy stems<br />

from the speed, reliability, and, most importantly, the keyboard of the<br />

ASR-33 Teletype, the common input/output device in those days. Unlike<br />

today’s keyboards, where the distance keys travel is based on feedback<br />

principles, and the only force necessary is that needed to close a<br />

microswitch, keys on the Teletype (at least in memory) needed to travel<br />

over half an inch, and take the force necessary to run a small electric generator<br />

such as those found on bicycles. You could break your knuckles touch<br />

typing on those beasts<br />

If Dennis and Ken had a Selectric instead of a Teletype, we’d probably be<br />

typing “copy” and “remove” instead of “cp” and “rm.”1 Proof again that<br />

technology limits our choices as often as it expands them.<br />

After more than two decades, what is the excuse for continuing this tradition?<br />

The implacable force of history, AKA existing code and books. If a<br />

vendor replaced rm by, say, remove, then every book describing Unix<br />

would no longer apply to its system, and every shell script that calls rm<br />

would also no longer apply. Such a vendor might as well stop implementing<br />

the POSIX standard while it was at it.<br />

A century ago, fast typists were jamming their keyboards, so engineers<br />

designed the QWERTY keyboard to slow them down. Computer keyboards<br />

don’t jam, but we’re still living with QWERTY today. A century<br />

from now, the world will still be living with rm.<br /><br />
以上摘自 http://www.linuxsir.org/bbs/showthread.php?t=260278<br /><img src ="http://www.blogjava.net/Jcat/aggbug/52843.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2006-06-14 20:48 <a href="http://www.blogjava.net/Jcat/archive/2006/06/14/52843.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>How to mount usb-disk in Linux(FC3)</title><link>http://www.blogjava.net/Jcat/archive/2006/06/06/50921.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 06 Jun 2006 13:49:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2006/06/06/50921.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/50921.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2006/06/06/50921.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/50921.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/50921.html</trackback:ping><description><![CDATA[
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		<p style="margin-bottom: 0cm;">
				<font face="Nimbus Roman No9 L, serif">1. Liunx</font>能识别<font face="Nimbus Roman No9 L, serif">Fat32<br /></font></p>
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		</style>2.在<font face="Nimbus Roman No9 L, serif"><font color="#0000ff">/mnt</font></font>文件夹下，建立个文件夹名字<font face="Nimbus Roman No9 L, serif">usb</font><br />
3.用命令 <font face="Nimbus Roman No9 L, serif">$<font color="#ff0000">mount
/dev/sda1 /mnt/usb</font><font color="#ff0000"></font><font color="#008000">(</font></font><font color="#008000">中间有个空格噢<font face="Nimbus Roman No9 L, serif">)</font></font><br />
4.内容就在<font face="Nimbus Roman No9 L, serif">usb</font>文件夹里！<p style="margin-bottom: 0cm;">似乎<font face="Nimbus Roman No9 L, serif">FC3</font>直接就支持<font face="Nimbus Roman No9 L, serif">U</font>盘<font face="Nimbus Roman No9 L, serif">,</font>所以当插入<font face="Nimbus Roman No9 L, serif">U</font>盘时<font face="Nimbus Roman No9 L, serif">,</font>情形就跟<font face="Nimbus Roman No9 L, serif">Windows</font>下一样<font face="Nimbus Roman No9 L, serif">,</font>你只用点击出现的图标即可<font face="Nimbus Roman No9 L, serif">.</font></p><p style="margin-bottom: 0cm;"><span style="font-family: nimbus roman no9 l,serif;"><br />
附录:</span><font face="Nimbus Roman No9 L, serif"></font><br />
Q: 点击图标<font face="Nimbus Roman No9 L, serif">,</font>结果就卡在那里了.<font face="Nimbus Roman No9 L, serif"></font><br />
  猜测原因<font face="Nimbus Roman No9 L, serif">:<br />
    1.</font>可能是因为我的那些<font face="Nimbus Roman No9 L, serif">MP3</font>的中文名子<font face="Nimbus Roman No9 L, serif">(Linux</font>无法识别<font face="Nimbus Roman No9 L, serif">Windows</font>下的写的中文<font face="Nimbus Roman No9 L, serif">)<br />
    2.</font>也可能是因为我<font face="Nimbus Roman No9 L, serif">MP3</font>里的病毒<font face="Nimbus Roman No9 L, serif">(</font>病毒本身对<font face="Nimbus Roman No9 L, serif">Linux</font>并无作用<font face="Nimbus Roman No9 L, serif">,</font>但<font face="Nimbus Roman No9 L, serif">.exe</font>文件让<font face="Nimbus Roman No9 L, serif">Linux</font>无法识别<font face="Nimbus Roman No9 L, serif">)<br />
A:</font> 把<font face="Nimbus Roman No9 L, serif">U</font>盘格式化<font face="Nimbus Roman No9 L, serif">(Fat32)</font>了一下<font face="Nimbus Roman No9 L, serif">,</font>就好了<font face="Nimbus Roman No9 L, serif">.</font></p><img src ="http://www.blogjava.net/Jcat/aggbug/50921.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2006-06-06 21:49 <a href="http://www.blogjava.net/Jcat/archive/2006/06/06/50921.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Wide Screen Resolution: Dell700m+FC3+1280x800</title><link>http://www.blogjava.net/Jcat/archive/2006/06/06/50902.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 06 Jun 2006 12:53:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2006/06/06/50902.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/50902.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2006/06/06/50902.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/50902.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/50902.html</trackback:ping><description><![CDATA[
		<p style="margin-bottom: 0cm;" align="left">
				<font face="Nimbus Roman No9 L, serif" size="2">
						<font face="Courier, monospace">
								<span lang="en-US">
										<b>1.</b>
								</span>
						</font>运行<font face="Courier, monospace"><span lang="en-US"><b>:<br /></b>#<font color="#ff0000">gtf
1280 800 60</font><b><font color="#ff0000"><br /></font></b></span></font></font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font face="Nimbus Roman No9 L, serif" size="2">得到一个<font face="Courier, monospace"><span lang="en-US">modeline</span></font><font size="2">，</font>如：<font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font><font face="Courier, monospace"><span lang="en-US">#
1280x800 @ 60.00 Hz (GTF) hsync: 49.68 kHz; pclk: 83.46
MHz<br /></span></font><font face="Courier, monospace"><span lang="en-US"><font color="#ff0000">Modeline
"1280x800_60.00"</font></span></font><font color="#ff0000">　<font face="Courier, monospace"><span lang="en-US">83.46</span></font></font><font color="#ff0000">　<font face="Courier, monospace"><span lang="en-US">1280
1344 1480 1680</span></font></font><font color="#ff0000">　<font face="Courier, monospace"><span lang="en-US">800
801 		804 828 -HSync
+Vsync</span></font><b><br /></b></font>　　<font face="Courier, monospace"><span lang="en-US"></span></font><br />
把这个<font face="Courier, monospace"><span lang="en-US">modeline</span></font>拷贝到<font face="Courier, monospace"><span lang="en-US"><b><font color="#0000ff">/etc/X11/xorg.conf</font></b></span></font><font color="#0000ff">中的<font face="Courier, monospace"><span lang="en-US"><b>Monitor</b></span></font></font><font color="#0000ff">段中。</font><font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font></font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font face="Nimbus Roman No9 L, serif" size="2">基础知识：</font>
				<font face="Nimbus Roman No9 L, serif" size="2">gtf = generalized timing formula，</font>
				<font face="Nimbus Roman No9 L, serif" size="2">定义了产生画面所需要的时间。gtf 计算出显示器屏幕尺寸、分辨率，然后我们把计算出来的值插入到xorg.conf配置文件中，就能达到自动调节屏幕的显示尺寸、位置及分辨率。　　</font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<br />
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font face="Nimbus Roman No9 L, serif" size="2">
						<font face="Courier, monospace">
								<font face="Courier, monospace">
										<span lang="en-US">
										</span>
								</font>
								<span lang="en-US">
										<b>2.</b>
								</span>
						</font>在Screen段，把<font face="Courier, monospace"><span lang="en-US"><b>Modes</b></span></font>一行，修改成<font face="Courier, monospace"><span lang="en-US"><b><font color="#ff0000">Modes
“1280x800”</font></b></span></font><br /><b><span lang="en-US"><font face="Courier, monospace"><font color="#00ae00">  </font></font></span></b><span lang="en-US"><font face="Courier, monospace"><font color="#00ae00">(没有就添加<font size="2">)</font></font></font></span></font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font size="2">
						<font face="Nimbus Roman No9 L, serif">
								<font size="2">Section "Screen"<br />        Identifier "Screen0"<br />        Device     "Videocard0"<br />        Monitor    "Monitor0"<br />        DefaultDepth     24<br />        SubSection "Display"<br />                Viewport   0 0<br />                Depth     24<br />                <b>Modes    "1280x800"</b><br />        EndSubSection<br />EndSection</font>
						</font>
				</font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<br />
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font size="2">
						<font color="#00ae00">
								<font face="Nimbus Roman No9 L, serif">
										<font size="2">
										</font>
										<br />
								</font>
						</font>
				</font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font color="#ff0000" size="2">
				</font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font face="Nimbus Roman No9 L, serif" size="2">
						<b>
								<span lang="en-US">
										<font face="Courier, monospace">
												<font color="#000000">3.</font>
										</font>
								</span>
						</b>
				</font>
				<font size="2">
						<font color="#000000">安装<font face="Nimbus Roman No9 L, serif"><b><span lang="en-US"><font face="Courier, monospace">855Resolution.<br /></font></span></b></font></font>
						<font color="#000000">　　
 </font>
				</font>
				<font size="2">
						<font face="Nimbus Roman No9 L, serif">
								<a href="http://perso.wanadoo.fr/apoirier/">
										<b>
												<span lang="en-US">
														<font face="Courier, monospace">
																<font color="#000080">http://perso.wanadoo.fr/apoirier/</font>
														</font>
												</span>
										</b>
								</a>
								<span style="font-family: nimbus roman no9 l,serif;">
										<br />
										<br />
								</span>
								<font face="Courier, monospace">
										<span lang="en-US">
										</span>
								</font>解开源码之后先<font face="Courier, monospace"><span lang="en-US"><b>	#<font color="#ff0000">make</font><br /></b></span></font>然后用<font face="Courier, monospace"><span lang="en-US"><b>root</b></span></font>权限<font face="Courier, monospace"><span lang="en-US"><b>	#<font color="#ff0000">make
install</font></b></span></font>即可。<font color="#008000"><font face="Courier, monospace"><span lang="en-US"><b></b></span></font><b><br /></b></font><font color="#990000">cp 8<font size="2">55re<font size="2">solution /usr<font size="2">/sbin   <font size="2">(<font size="2">其实就是拷<font size="2">了一个可执行文件到sbin里</font></font>)</font></font></font></font>　　</font></font>
				</font>
				<br />
				<font size="2">
						<font face="Nimbus Roman No9 L, serif">
								<font face="Courier, monospace">
										<span lang="en-US">
												<b>
														<font color="#008000">(</font>
												</b>
										</span>
								</font>
								<font color="#008000">注意<font face="Courier, monospace"><span lang="en-US"><b>,</b></span></font></font>
								<font color="#008000">安装<font face="Courier, monospace"><span lang="en-US"><b>FC3</b></span></font></font>
								<font color="#008000">时<font face="Courier, monospace"><span lang="en-US"><b>,</b></span></font></font>
								<font color="#008000">如果选择桌面版<font face="Courier, monospace"><span lang="en-US"><b>,</b></span></font></font>
								<font color="#008000">将不会安装<font face="Courier, monospace"><span lang="en-US"><b>gcc,</b></span></font></font>
								<font color="#008000">可这里要用到<font face="Courier, monospace"><span lang="en-US"><b>,</b></span></font></font>
								<font color="#008000">所以找到<font face="Courier, monospace"><span lang="en-US"><b>FC</b></span></font></font>
								<font color="#008000">的安<font face="Courier, monospace"><span lang="en-US"></span></font></font>
								<font color="#008000">装盘<font face="Courier, monospace"><span lang="en-US"><b>,</b></span></font></font>
								<font color="#008000">补充安装一下<font face="Courier, monospace"><span lang="en-US"><b>gcc</b></span></font></font>
								<font color="#008000">就可以了<font face="Courier, monospace"><span lang="en-US"><b>)</b></span></font></font>
						</font>
				</font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<br />
				<font size="2">
						<font face="Nimbus Roman No9 L, serif">
								<font face="Courier, monospace">
										<span lang="en-US">
										</span>
								</font>
						</font>
				</font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font size="2">
						<font face="Nimbus Roman No9 L, serif">
								<font face="Courier, monospace">
										<span lang="en-US">
												<b>4.</b>
										</span>
								</font>运行<font face="Courier, monospace"><span lang="en-US"><b>:<br /></b></span></font>　<font face="Courier, monospace"><span lang="en-US"><b>	#<font color="#ff0000">./855resolution
-l</font><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"></span></font>得到输出：<font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	855resolution
version 0.4, by Alain Poirier</b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	Chipset:
855GM (id=0x35808086)<br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	VBIOS
type: 2<br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	VBIOS
Version: 3104</b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	Mode
30 : 640x480, 8 bits/pixel<br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	Mode
32 : 800x600, 8 bits/pixel<br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	....<br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	Mode
5c : 1920x1440, 32 bits/pixel<br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	Mode
7c : 1280x800, 8 bits/pixel<br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b><font color="#0000ff">Mode
7d : 1280x800, 16 bits/pixel</font><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>	Mode
7e : 1280x800, 32 bits/pixel<br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"></span></font>其中：<font face="Courier, monospace"><span lang="en-US"><b>Mode
7d</b></span></font>一行，是我们想要的。<font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b><br />5.</b></span></font>运行：<font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b>#./<font color="#ff0000">855resolution
7d 1280 800</font><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b><br />6.startx(</b></span></font>注消<font face="Courier, monospace"><span lang="en-US"><b>,</b></span></font>再登录回来<font face="Courier, monospace"><span lang="en-US"><b>)</b></span></font>，这时候就应该<font face="Courier, monospace"><span lang="en-US"><b>OK</b></span></font>了。<font face="Courier, monospace"><span lang="en-US"><b><br /></b></span></font>　　<font face="Courier, monospace"><span lang="en-US"><b><br />7.</b></span></font>为了以后每次重新启动系统都能自动生效:<br /><font face="Courier, monospace"><span lang="en-US"></span></font>    把<font face="Courier, monospace"><span lang="en-US"><b><font color="#ff0000">855resolution
7d 1280 800</font><font color="#00ae00">(</font></b></span></font><font color="#00ae00">注意还要加入路径名<font face="Courier, monospace"><span lang="en-US"><b>)</b></span></font></font>添加到<br /><font face="Courier, monospace"><span lang="en-US"><b><font color="#ff0000">    /etc/rc.d/rc.local
</font></b></span></font>脚本中。这样每次启动都会自动配置好宽屏了。</font>
				</font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font face="Nimbus Roman No9 L, serif" size="2">
						<br />
附录<font face="Courier, monospace"><span lang="en-US"><b>1:
vi</b></span></font>的使用<br />
i
	</font>
				<font size="2">编辑<br /><font face="Nimbus Roman No9 L, serif">:
	</font>进入控制栏<br /><font face="Nimbus Roman No9 L, serif">:w
	</font>写入退出<br /><font face="Nimbus Roman No9 L, serif">:qa!	</font>不写入退出</font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
				<font size="2">附录<font face="Nimbus Roman No9 L, serif">2: 
</font>配置<font face="Nimbus Roman No9 L, serif">"主菜单--&gt;系统设置--&gt;</font>显示<font face="Nimbus Roman No9 L, serif">" 
(</font>目前还不知道这步操作的具体作用<font face="Nimbus Roman No9 L, serif">,</font>以及对前面操作的影响<font face="Nimbus Roman No9 L, serif">)<br /><br />
设置--&gt;分辨率=640x480<br />
设置--&gt;色彩深度=上百万颜色<br />
硬件--&gt;显示器类型=LCD Panel 1280x800<br />
硬件--&gt;视频卡类型=Intel 855<br /></font></font>
		</p>
		<p style="margin-bottom: 0cm;" align="left">
		</p>
<img src ="http://www.blogjava.net/Jcat/aggbug/50902.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2006-06-06 20:53 <a href="http://www.blogjava.net/Jcat/archive/2006/06/06/50902.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>How to install bitnet (an agent for accessing Internet from BIT Campus Network)?</title><link>http://www.blogjava.net/Jcat/archive/2006/06/06/50896.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 06 Jun 2006 12:34:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2006/06/06/50896.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/50896.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2006/06/06/50896.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/50896.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/50896.html</trackback:ping><description><![CDATA[
		<meta http-equiv="CONTENT-TYPE" content="text/html; charset=utf-8" />
		<title>
		</title>
		<meta name="GENERATOR" content="OpenOffice.org 1.1.2  (Linux)" />
		<meta name="CREATED" content="20060524;23194600" />
		<meta name="CHANGED" content="20060524;23202100" />
		<style>
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		</style>
		<p style="margin-bottom: 0cm;">
				<font face="Nimbus Roman No9 L, serif">1. 
 Install<br />
$su
     (</font>登录<font face="Nimbus Roman No9 L, serif">root)<br />
#cd
/home  (</font>到<font face="Nimbus Roman No9 L, serif">home</font>目录下<font face="Nimbus Roman No9 L, serif">)<br /><font color="#ff0000">#chmod
+x bitnet  (</font></font><font face="Nimbus Roman No9 L, serif">加可执行权限<font face="Nimbus Roman No9 L, serif">)</font><br />
#./bitnet
 (</font>执行<font face="Nimbus Roman No9 L, serif">)</font></p>
		<p style="margin-bottom: 0cm;">
				<font face="Nimbus Roman No9 L, serif">	2. </font>以下为执行后填入的参数<br /><font face="Nimbus Roman No9 L, serif">id
   : liran<br />
pwd:
******<br />
model[1]
  </font>回车即可</p>
		<p>
				<font face="Nimbus Roman No9 L, serif">3.  Usage of bitnet <br /><span style=""><span style="text-decoration: none;"><font color="#ff0000">bitnet</font></span></span>[-skqn]<br />
Start or stop agent for BIT Campus
Network.<br />
Options:<br />  -h	Show this information.<br />  -s	Setup
configuration.<br />  -k	Kill the agent.<br />  -q	Query how much money
remained.<br /><br /></font>说明<font face="Nimbus Roman No9 L, serif">:
</font>第一次使用的时候会要求输入用户名和密码，并询问是否保存该信息，如果是，将会保存帐号信息到
<font face="Nimbus Roman No9 L, serif">$HOME/<span style="text-decoration: none;">.<font color="#000000"><span style="">bitnet</span></font></span></font><span style="text-decoration: none;"><font color="#000000"><span style="">，此后只需要直接运行
</span><font face="Nimbus Roman No9 L, serif"><span style="">bitnet
</span></font></font></span><span style="text-decoration: none;"><font color="#000000">便</font></span>可自动登录。如果需要使用新的帐号信息，只需要加
<font face="Nimbus Roman No9 L, serif">-s </font>参数重新进行设定即可。<br /></p>
		<p>〔附录〕<br />
Q：在宿舍还好好的，把本本带到教室后就进不了FC3了。
卡在“enabling swap space  [ok]”后面半天不动，然后我按Ctrl+Alt+Delete，出现“unloading kernel card services”<br />
我猜想是不是网络改变的问题？因为我们学校上网都是用“IP自动获取”的。我还发现，如果不插网线，它也会卡在一个地方不动，一插上就过去了。<br /></p>
		<p>A：进来了,原因总结如下:<br />

1. 在学校上网需要启动一个上网助理<br />

2. 我将启动这个助理的命令加到 rc.local 中了,以便每次开机时都自动启动.<br />

3. 可能因为换了个地方,它在启动界面让我输入id/pwd,如果过几秒不输(因为我一开始没注意),这个输入界面就没了,然后卡在那里.<br />
4. 在启动界面输一下id/pwd就好了<br /></p>
<img src ="http://www.blogjava.net/Jcat/aggbug/50896.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2006-06-06 20:34 <a href="http://www.blogjava.net/Jcat/archive/2006/06/06/50896.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>The way of my Linux studying</title><link>http://www.blogjava.net/Jcat/archive/2006/06/06/50890.html</link><dc:creator>Jcat</dc:creator><author>Jcat</author><pubDate>Tue, 06 Jun 2006 12:16:00 GMT</pubDate><guid>http://www.blogjava.net/Jcat/archive/2006/06/06/50890.html</guid><wfw:comment>http://www.blogjava.net/Jcat/comments/50890.html</wfw:comment><comments>http://www.blogjava.net/Jcat/archive/2006/06/06/50890.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Jcat/comments/commentRss/50890.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Jcat/services/trackbacks/50890.html</trackback:ping><description><![CDATA[2006-5-23, 下午Dell来公司给我修小七，换了个主板，爽！晚上决定装Linux，把F盘的东西分别移到了E盘和移动硬盘上，决定装ubuntu，从ftp上
down了一个，刻盘顺利，结果竟然读不出来，晕到了。只好用《宝典》配的DVD，装Fedora3，还算顺利。可是弄了半天不会上网，今天先到这。<br /><br />
2006-5-24, 晚上搞定了几件事：可以上网了（其实就是用自动获取IP就好了），学会使用：FireFox，中文输入法，openoffice，kprint，gfpt。不过还是不能上外网（不会装北理客户端），真可怜。<br /><br />
2006-5-25, 搞定上外网问题(<a href="/Jcat/archive/2006/06/06/50896.html">安装bitnet</a>)<br /><br />
2006-5-31, 一个幸运的日子(碰巧也是我妹妹的生日), 我终于解决了<a href="/Jcat/archive/2006/06/06/50902.html">Linux下的宽屏问题</a>,虽然是误打误撞,不过还是很高兴,毕竟这是我解决的第一个问题. 向着Linux前进、前进、前前进~~<br /><br />
2006-6-3, 搞定<a href="/Jcat/archive/2006/06/06/50921.html">U盘问题</a>.<br /><br /><img src ="http://www.blogjava.net/Jcat/aggbug/50890.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Jcat/" target="_blank">Jcat</a> 2006-06-06 20:16 <a href="http://www.blogjava.net/Jcat/archive/2006/06/06/50890.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>