Here's how it works: Whenever the system is given a file name that is a symbolic link, it transparently maps it to the file it is pointing to.
它的工作机理是这样的：当系统处理的文件是一个符号链接时，系统会自动的将这个符号链接映射到符号链接指向的文件。
The file kxp12.c is renamed in a more readable manner, then the link command is used to create a symbolic link back to the original file name, in case it's still used elsewhere.
重新命名文件kxp12 . c以提高可读性，然后使用link命令来创建到原始文件名的符号链接，以防在其他位置使用该文件名。
If you want to be able to detect symbolic links as well, use lstat on a file name.
如果您想能够检测出符号链接，那么可以对文件名使用lstat 。
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