如何获得二进制文件的幻数 [英] How to get magic number of a binary file

问题描述

每个二进制文件都有一个魔幻数字，有人知道如何从文件中检索此信息吗?

There is a magic number associated with each binary file , does anyone know how to retrieve this information from the file?

推荐答案

使用 libmagic 从 file 包中尝试尝试找出文件的类型(如果这是您的目标).

Use libmagic from the file package to try and sniff out the type of file if that's your goal.

Unix上的二进制文件中没有通用的魔术"数字，尽管可能会定义不同的格式.上面的库了解了其中的许多内容，还使用其他各种启发式方法来尝试找出文件的格式/类型.

There are no general "magic" numbers in binary files on unix, though different formats might define their own. The above library knows about many of those and also use various other heuristics to try and figure out the format/type of file.

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