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一图看懂 Linux 文件系统

  • 2026-08-18 23:11:37
一图看懂 Linux 文件系统

一图看懂 Linux 文件系统


很多人每天都在使用 Linux，却很少真正理解它的文件系统。

为什么 Linux 中一切皆文件（Everything is a File）？
为什么 /etc 存放配置文件、/var 保存日志、/proc 看不到真实文件却能查看系统信息？

理解 Linux 文件系统，是学习 Linux、运维、云原生和 Kubernetes 的第一步。

这张图从 目录结构、文件类型、权限机制、inode、存储原理到挂载机制，帮助你快速建立完整的 Linux 文件系统知识体系。

📌 图中包含：

✅ FHS（Filesystem Hierarchy Standard）标准目录结构

✅ 常见目录作用（/etc、/usr、/var、/home、/proc、/sys、/dev 等）

✅ Linux 七种文件类型详解

✅ rwx 权限模型与 chmod 使用

✅ inode 与数据块（Block）工作原理

✅ ext4、xfs、btrfs、tmpfs 等常见文件系统对比

✅ 文件挂载（Mount）机制

✅ 虚拟文件系统（proc、sysfs、devtmpfs）

✅ 常用文件系统管理命令速查

无论你是 Linux 初学者，还是运维工程师、SRE、DevOps 或云原生开发者，理解文件系统都能帮助你更高效地管理服务器、排查磁盘问题、分析权限故障以及优化系统性能。

建议收藏这张图，很多平时容易混淆的知识点，都可以在这里快速查阅。

💬 你觉得 Linux 文件系统最难理解的是哪个部分？欢迎在评论区一起交流！

⸻

#Linux
#Linux文件系统
#Linux运维
#Linux学习
#Linux内核
#服务器运维
#DevOps
#SRE
#云原生
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  137. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-template/src/template/driver/File.php ( 2.41 KB )
  138. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
  139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000763s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001259s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000675s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.031437s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001445s ]
  6. SELECT * FROM `set` [ RunTime:0.000542s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001293s ]
  8. SELECT * FROM `article` WHERE `id` = 508346 LIMIT 1 [ RunTime:0.008482s ]
  9. UPDATE `article` SET `lasttime` = 1787300831 WHERE `id` = 508346 [ RunTime:0.002858s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000289s ]
  11. SELECT * FROM `article` WHERE `id` < 508346 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001485s ]
  12. SELECT * FROM `article` WHERE `id` > 508346 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002569s ]
  13. SELECT * FROM `article` WHERE `id` < 508346 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.008003s ]
  14. SELECT * FROM `article` WHERE `id` < 508346 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.004763s ]
  15. SELECT * FROM `article` WHERE `id` < 508346 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.005192s ]
0.164998s