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程序员必备的Linux命令——查看文件及内容处理

  • 2026-01-27 04:40:46
程序员必备的Linux命令——查看文件及内容处理

Linux命令就是我们对Linux系统进行管理的操作指令。类似于我们操作windows系统中可视化的各种操作动作。

在Linux系统中，我们任何东西都被认做是文件，比如cpu、内存、键盘以及用户全是文件。Linux命令类似于之前的DOS命令。

Linux系统中命令分为两种：Linux命令以及Shell命令。

上一篇程序员必备的Linux命令——文件及目录命令 对文件及目录的操作指令，今天我们看一下查看文件及其内容的处理命令

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  2. 运行时间 : 0.345634s [ 吞吐率：2.89req/s ] 内存消耗：4,520.69kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=297acbe9b654e4f6795d6d89f6db9f62
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  1. CONNECT:[ UseTime:0.000830s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001424s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000722s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.009540s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001441s ]
  6. SELECT * FROM `set` [ RunTime:0.048458s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001479s ]
  8. SELECT * FROM `article` WHERE `id` = 466671 LIMIT 1 [ RunTime:0.003864s ]
  9. UPDATE `article` SET `lasttime` = 1770501409 WHERE `id` = 466671 [ RunTime:0.037689s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.012753s ]
  11. SELECT * FROM `article` WHERE `id` < 466671 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.019191s ]
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  15. SELECT * FROM `article` WHERE `id` < 466671 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.020278s ]
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