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    <title>Bo's Oracle Station - RHEL7基础</title>
    <link>https://www.botangdb.com/forum.php?mod=forumdisplay&amp;fid=72</link>
    <description>Latest 20 threads of RHEL7基础</description>
    <copyright>Copyright(C) Bo's Oracle Station</copyright>
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    <lastBuildDate>Sun, 19 Apr 2026 04:21:46 +0000</lastBuildDate>
    <ttl>60</ttl>
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      <title>Bo's Oracle Station</title>
      <link>https://www.botangdb.com/</link>
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    <item>
      <title>课程第10次</title>
      <link>https://www.botangdb.com/forum.php?mod=viewthread&amp;tid=1180</link>
      <description><![CDATA[sort 和uniq：
[root@station60 labs]# sort -n 1.txt
1
3
3
6
20
------------------------------------------[root@station60 labs]# sort -n 1.txt | uniq  -c
      1 1
      2 3
      1 6
      1 20
------------------------

注意空格：


 ...]]></description>
      <category>RHEL7基础</category>
      <author>botang</author>
      <pubDate>Sun, 28 Apr 2019 02:46:13 +0000</pubDate>
    </item>
    <item>
      <title>课程第9次</title>
      <link>https://www.botangdb.com/forum.php?mod=viewthread&amp;tid=1179</link>
      <description><![CDATA[s位的小实验：
目录group上s位的背景：
管道和文本处理：
gunzip -c :]]></description>
      <category>RHEL7基础</category>
      <author>botang</author>
      <pubDate>Thu, 25 Apr 2019 12:18:47 +0000</pubDate>
    </item>
    <item>
      <title>课程第8次</title>
      <link>https://www.botangdb.com/forum.php?mod=viewthread&amp;tid=1175</link>
      <description><![CDATA[visudo:
细分命令要用Cmnd_Alias,效果：
-bash-4.2# su - user2
Last login: Sat Apr 20 09:52:32 EDT 2019 on pts/0
$ usermod -L oracle
-bash: /usr/sbin/usermod: Permission denied
$ sudo  usermod -L oracle
$ sudo  usermod -U oracle
[sudo] password  ...]]></description>
      <category>RHEL7基础</category>
      <author>botang</author>
      <pubDate>Sat, 20 Apr 2019 13:56:25 +0000</pubDate>
    </item>
    <item>
      <title>课程第7次</title>
      <link>https://www.botangdb.com/forum.php?mod=viewthread&amp;tid=1174</link>
      <description><![CDATA[删除/dev/sdb上的所有分区：
创建/dev/sdb上的分区：
硬链接：]]></description>
      <category>RHEL7基础</category>
      <author>botang</author>
      <pubDate>Thu, 18 Apr 2019 13:16:32 +0000</pubDate>
    </item>
    <item>
      <title>课程第6次</title>
      <link>https://www.botangdb.com/forum.php?mod=viewthread&amp;tid=1172</link>
      <description><![CDATA[rescue:
  能够continue :  文件系统本身没有问题+原/etc/fstab内容正确。

  能够chroot： 在continue之后， 原/bin/bash和原/bin/mount没有丢失。


PV/VG/LV的小实验：
同时观察以下终端：
解决办法：1. 挪走pv上面的数据（pvmove）
2. 缩小vg
3. pvremove ...]]></description>
      <category>RHEL7基础</category>
      <author>botang</author>
      <pubDate>Tue, 16 Apr 2019 12:23:54 +0000</pubDate>
    </item>
    <item>
      <title>第5次uefi+gpt/lvm</title>
      <link>https://www.botangdb.com/forum.php?mod=viewthread&amp;tid=1170</link>
      <description><![CDATA[]]></description>
      <category>RHEL7基础</category>
      <author>botang</author>
      <pubDate>Sun, 14 Apr 2019 14:54:45 +0000</pubDate>
    </item>
    <item>
      <title>第4次yum和rescue模式</title>
      <link>https://www.botangdb.com/forum.php?mod=viewthread&amp;tid=1168</link>
      <description><![CDATA[]]></description>
      <category>RHEL7基础</category>
      <author>botang</author>
      <pubDate>Fri, 12 Apr 2019 15:09:37 +0000</pubDate>
    </item>
    <item>
      <title>第3次Linux基本命令和rpm</title>
      <link>https://www.botangdb.com/forum.php?mod=viewthread&amp;tid=1167</link>
      <description><![CDATA[]]></description>
      <category>RHEL7基础</category>
      <author>botang</author>
      <pubDate>Fri, 12 Apr 2019 15:08:14 +0000</pubDate>
    </item>
    <item>
      <title>第1-2次各种平台安装和vimtutor</title>
      <link>https://www.botangdb.com/forum.php?mod=viewthread&amp;tid=1164</link>
      <description><![CDATA[课程资料下载：
https://pan.baidu.com/s/1xcma5Mvfzdf0lvIs-9R-bg
提取码在机构课程老师处。]]></description>
      <category>RHEL7基础</category>
      <author>admin</author>
      <pubDate>Thu, 04 Apr 2019 23:47:42 +0000</pubDate>
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