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其实学了网安之后才发现:Linux 也就那样

  • 2026-06-30 07:56:15
其实学了网安之后才发现:Linux 也就那样

很多人一听到 Linux，就觉得高深、复杂、只有运维和大佬才配碰。其实真正学进去之后才发现：Linux 也就那样。它不是难，而是很多人一开始就被命令行、权限、目录结构这些概念吓住了。

——

只要把常用命令、文件管理、权限配置、进程查看、网络排查、软件安装这几块摸清楚，日常使用和工作排障基本就能跑起来。真正拉开差距的，不是你背了多少冷门命令，而是能不能在实际场景里快速定位问题、解决问题

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  1. CONNECT:[ UseTime:0.000618s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000706s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000311s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000309s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000482s ]
  6. SELECT * FROM `set` [ RunTime:0.000193s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000551s ]
  8. SELECT * FROM `article` WHERE `id` = 500229 LIMIT 1 [ RunTime:0.002220s ]
  9. UPDATE `article` SET `lasttime` = 1783011300 WHERE `id` = 500229 [ RunTime:0.020731s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.006443s ]
  11. SELECT * FROM `article` WHERE `id` < 500229 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001381s ]
  12. SELECT * FROM `article` WHERE `id` > 500229 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.005212s ]
  13. SELECT * FROM `article` WHERE `id` < 500229 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.007675s ]
  14. SELECT * FROM `article` WHERE `id` < 500229 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.005700s ]
  15. SELECT * FROM `article` WHERE `id` < 500229 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.057154s ]
0.177150s