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设置用户默认权限 Umask命令详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...最终的权限变成了755（777 – 022）。
顺便再介绍一下如何方便的修改目录或文件的权限：
shell> find /path -type d -print0 | xargs -0 chmod 755
shell> find /path -type f -print0 | xargs -0 chmod 644
本次补习班下课！
Umask 默认权限
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14 Answers
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What is the difference/usage of homebrew, macports or other package installation tools? [closed]
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Modbus硬件控制02——modbus继电器 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...置均通过485通信口进行设置，且可通过产品上的按键进行重置为默认设置，即为9600波特率，8个数据位，偶校验，1个停止位。
二、模块功能
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