Location the original

A hard-linked file does not require the user to have access rights to the original file and does not show the location of the original, so it has some security advantages.

硬链接的文件不需要用户有访问原始文件的权限，也不会显示原始文件的位置，这样有助于文件的安全。

By default, GRUB does not look in that location for a config file, so you must add a small hack to the file in the original location.

默认情况下，GRUB不会在这个位置来寻找配置文件，因此我们必须在初始位置上通过一个小技巧来使用该文件。

A symbolic link shows the location of the original file and requires a user to have access rights to the original file's location in order to use the link.

符号链接只是指明了原始文件的位置，用户需要对原始文件的位置有访问权限才可以使用链接。