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别死记硬背了!Linux命令“速查手册”IT运维必备

  • 2026-07-01 06:39:41
别死记硬背了!Linux命令“速查手册”IT运维必备

对于运维工程师而言，Linux命令行就是我们的“手术刀”。很多人觉得运维就是修机器、看监控，但真正拉开差距的，往往就在那黑底白字的终端里——同样的故障，有人敲几行命令十分钟定位，有人翻半天日志还找不到北。

这不是天赋差异，而是对常用命令的熟练度与理解深度的不同。

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  1. CONNECT:[ UseTime:0.000814s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001414s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.006467s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.013116s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001572s ]
  6. SELECT * FROM `set` [ RunTime:0.011343s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001594s ]
  8. SELECT * FROM `article` WHERE `id` = 500905 LIMIT 1 [ RunTime:0.036625s ]
  9. UPDATE `article` SET `lasttime` = 1783011439 WHERE `id` = 500905 [ RunTime:0.017233s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.013155s ]
  11. SELECT * FROM `article` WHERE `id` < 500905 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.024705s ]
  12. SELECT * FROM `article` WHERE `id` > 500905 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.015862s ]
  13. SELECT * FROM `article` WHERE `id` < 500905 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.030563s ]
  14. SELECT * FROM `article` WHERE `id` < 500905 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.008424s ]
  15. SELECT * FROM `article` WHERE `id` < 500905 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.044023s ]
0.322024s