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Linux运维必看:Shell脚本的三个坑,一篇文章帮你避坑!

  • 2026-04-17 19:17:58
Linux运维必看:Shell脚本的三个坑,一篇文章帮你避坑!
刚接触Linux的你，是不是也对shell脚本很头疼。
1.变量用着别扭：加$、加引号、加空格、有一点错误就报错!
2.判断符号反人类：-eq、-ne、-gt记不住，括号两边必须有空格！
3.报错看不懂：哪里出错，去哪靠猜，改了半天还是跑不起来！
这些问题很头疼吧，那请好好看下面的内容，看我怎么解决！
学习Linux运维和开发，那shell脚本必须学好，掌握循环、变量、条件判断、重定向这些基础，你就能写出实用的自动化脚本。但是如果你觉得这些还不能满足你，想往更深的方向走，网络安全就是你的下一站。无论是信息收集、漏洞扫描还是权限维持，都离不开Shell脚本。把shell脚本学扎实，你的网安之路会走得更顺。
另外，我整理了一份网络安全的自学资料，需要的朋友留333，我安排
#Linux命令大全#shell脚本#Linux#计算机#互联网#程序员#网路安全
本文来自网友投稿或网络内容，如有侵犯您的权益请联系我们删除，联系邮箱：wyl860211@qq.com 。

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  1. CONNECT:[ UseTime:0.000793s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000868s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000277s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000279s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000497s ]
  6. SELECT * FROM `set` [ RunTime:0.000193s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000577s ]
  8. SELECT * FROM `article` WHERE `id` = 484798 LIMIT 1 [ RunTime:0.001661s ]
  9. UPDATE `article` SET `lasttime` = 1776659056 WHERE `id` = 484798 [ RunTime:0.020969s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000262s ]
  11. SELECT * FROM `article` WHERE `id` < 484798 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000410s ]
  12. SELECT * FROM `article` WHERE `id` > 484798 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000371s ]
  13. SELECT * FROM `article` WHERE `id` < 484798 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001332s ]
  14. SELECT * FROM `article` WHERE `id` < 484798 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001230s ]
  15. SELECT * FROM `article` WHERE `id` < 484798 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004743s ]
0.164390s