当前位置：首页>Linux>对 Linux 理解不深的人可以看看这里

对 Linux 理解不深的人可以看看这里

  • 2026-01-20 18:32:28
对 Linux 理解不深的人可以看看这里
我之前学习 Linux 的时候，同样有很多悬而未决理解不了的知识，晚上逛论坛的时候看到一份资料，我觉得挺不错，发给大家看看。
先上链接
https://cppguide.cn/pages/the-kernel-in-the-mind-ch01/
比如下面的这个观点
Linux 内核既不是进程、守护进程（daemon），也不是应用程序。它是一个具有特权的、驻留在内存中的环境，构成了操作系统的基础。与用户程序不同，它不被调度，没有进程标识符（PID），也不像传统任务那样启动或停止。相反，它始终存在——在引导时加载到内存中——并管理硬件和软件之间的所有交互。
我们在学习的时候，经常遇到一个问题，Linux 是一个什么东西，我们提到 Linux 一定是附带有根文件系统的，如果没有根文件系统，就形成不了 Linux 的环境，它就是一个驻留在内存中的一个环境，应用程序什么的，都需要使用这个环境才能继续工作。
除此之外，还有很多其他的知识点，希望给大家的学习带来一些帮助
本文来自网友投稿或网络内容，如有侵犯您的权益请联系我们删除，联系邮箱：wyl860211@qq.com 。

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  1. CONNECT:[ UseTime:0.000776s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000889s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.004237s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000509s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000838s ]
  6. SELECT * FROM `set` [ RunTime:0.000370s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.003491s ]
  8. SELECT * FROM `article` WHERE `id` = 465594 LIMIT 1 [ RunTime:0.003174s ]
  9. UPDATE `article` SET `lasttime` = 1770525345 WHERE `id` = 465594 [ RunTime:0.006370s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.003998s ]
  11. SELECT * FROM `article` WHERE `id` < 465594 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.004348s ]
  12. SELECT * FROM `article` WHERE `id` > 465594 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.018291s ]
  13. SELECT * FROM `article` WHERE `id` < 465594 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000770s ]
  14. SELECT * FROM `article` WHERE `id` < 465594 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.020227s ]
  15. SELECT * FROM `article` WHERE `id` < 465594 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.019446s ]
0.185800s