第1章 /etc/<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">目录

1.1 /etc/sysconfig/network-scripts/ifcfg-eth0

1.2 /etc/resolv.conf

dns<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">临时配置文件

1.3 /etc/fstab

       <span style=“font-family:新宋体;Times New Roman”;Times New Roman"">使用blkid <span style=“font-family:新宋体;Times New Roman”;Times New Roman"">可以看设备的UUID<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">唯一标识符

1.4     /etc/hosts

1.5 /etc/profile

1.6 /etc/bashrc

1.6.1 .bash_profile<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">与 .bashrc

1.7 /etc/init.d

1.8 /etc/inittab

       <span style=“font-family:新宋体;Times New Roman”;Times New Roman"">运行级别===<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">系统不同的状态

1.8.1 <span style=“font-family: 新宋体;Times New Roman”;Times New Roman"">不同运行级别的含义：

1.8.2 <span style=“font-family: 新宋体;Times New Roman”;Times New Roman"">如何临时修改运行级别

init  3   <span style=“font-family: 新宋体;Times New Roman”;Times New Roman"">修改运行级别

      

runlevel <span style=“font-family: 新宋体;Times New Roman”;Times New Roman"">显示运行级别

 

1.8.3 <span style=“font-family: 新宋体;Times New Roman”;Times New Roman"">如何永久修改运行级别

1.9 /etc/rc.local

第2章 /var/<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">目录

2.1 /var/log/messages

2.2 /var/log/secure

 

第3章 /proc<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">目录下

3.1 /proc/cpuinfo

3.2 /proc/meminfo

3.3 /proc/mounts

3.4 /proc/loadavg

w

第4章 linux<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">启动过程

第5章 PATH<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">环境变量作用

5.1 <span style=“font-family: 新宋体;Times New Roman”;Times New Roman"">运行命令的过程

1<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">、输入命令 ls

2<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">、系统会找ls <span style=“font-family:新宋体;Times New Roman”;Times New Roman"">在哪（问PATH<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">）

3<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">、找到了运行

4<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">、找不到提示 command not found <span style=“font-family:新宋体;Times New Roman”;Times New Roman"">或 no such file or directory

5.2 PATH<span style=“font-family:新宋体;Times New Roman”;Times New Roman"">修改

    <li>
      <a href="#17_etcinitd">1.7 /etc/init.d</a>
    </li>
    <li>
      <a href="#18_etcinittab">1.8 /etc/inittab</a><ul>
        <li>
          <a href="#181">1.8.1 不同运行级别的含义：</a>
        </li>
        <li>
          <a href="#182">1.8.2 如何临时修改运行级别</a>
        </li>
        <li>
          <a href="#183">1.8.3 如何永久修改运行级别</a>
        </li>
      </ul>
    </li>
    
    <li>
      <a href="#19_etcrclocal">1.9 /etc/rc.local</a>
    </li>
  </ul>
</li>

<li>
  <a href="#2_var">第2章 /var/目录</a><ul>
    <li>
      <a href="#21_varlogmessages">2.1 /var/log/messages </a>
    </li>
    <li>
      <a href="#22_varlogsecure">2.2 /var/log/secure</a>
    </li>
  </ul>
</li>

<li>
  <a href="#3_proc">第3章 /proc目录下</a><ul>
    <li>
      <a href="#31_proccpuinfo">3.1 /proc/cpuinfo</a>
    </li>
    <li>
      <a href="#32_procmeminfo">3.2 /proc/meminfo</a>
    </li>
    <li>
      <a href="#33_procmounts">3.3 /proc/mounts</a>
    </li>
    <li>
      <a href="#34_procloadavg">3.4 /proc/loadavg</a>
    </li>
  </ul>
</li>

<li>
  <a href="#4_linux">第4章 linux启动过程</a>
</li>
<li>
  <a href="#5_PATH">第5章 PATH环境变量作用</a><ul>
    <li>
      <a href="#51">5.1 运行命令的过程</a>
    </li>
    <li>
      <a href="#52_PATH">5.2 PATH修改</a>
    </li>
  </ul>
</li>