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20个实用的Linux命令

  • 2026-04-16 15:50:03
20个实用的Linux命令

20个实用的Linux命令

在Linux运维工作中，掌握关键命令可以大幅提升故障排查和系统管理效率。
本文整理了20个最实用的Linux命令，涵盖系统监控、网络诊断、日志分析、文件管理等场景，教你如何使用它们应对突发故障。#Linux命令大全 #网络安全#计算机

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  1. CONNECT:[ UseTime:0.000577s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001055s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000339s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000273s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000648s ]
  6. SELECT * FROM `set` [ RunTime:0.000248s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000719s ]
  8. SELECT * FROM `article` WHERE `id` = 485332 LIMIT 1 [ RunTime:0.000407s ]
  9. UPDATE `article` SET `lasttime` = 1776394398 WHERE `id` = 485332 [ RunTime:0.013685s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000385s ]
  11. SELECT * FROM `article` WHERE `id` < 485332 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000665s ]
  12. SELECT * FROM `article` WHERE `id` > 485332 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000637s ]
  13. SELECT * FROM `article` WHERE `id` < 485332 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004434s ]
  14. SELECT * FROM `article` WHERE `id` < 485332 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003625s ]
  15. SELECT * FROM `article` WHERE `id` < 485332 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001887s ]
0.096537s