Linux查看环境变量
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Linux查看、设置与取消环境变量详解
目录一、如何查看环境变量1、env2、使用 printenv3、使用 echo二、env 和 set 有什么区别？三、如何设置环境变量1、临时设置（仅当前终端有效）2、 永久设置（每次终端启动都生效）四、总结一、如何查看环境变量[详细]
2025-07-10 09:56 分类：运维 Sorting by custom field and fetching whole tree from DB
I am trying to do file browser in a tree form and have a problem to sort it somehow. I use PHP and MySQL for that. I\'ve created mixed (nested set + adjacency) table \'element\' with the following fie[详细]
2022-12-29 04:12 分类：问答
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