Link files are similar to Windows shortcuts
Link files into hard-link files and soft-linked files
A hard-link file is a different link file that points to the same data, and there is no effect between linked files.
A soft link file is more like a shortcut, and if the original file is deleted, the original data cannot be found through a soft link file.
Let's talk about hard links.
This time, even if the original test1 file deleted, through the test2 still can find the original data.
ln default is to create a hard link, write the original file and then write the linked file
Besides, soft links (symbolic links)
A soft link is a pointer to a file pointing to the data.
To summarize: A hard-link file is actually a real file. The hard-link file size is the amount of real data, and the size of the soft-link file is simply a pointer to the original file (note not the data).
Linux disk partition link file