CODEWITHSUNDEEP
bashshellcommand-linehyperlink
Erick Calderin
Erick Calderin

Reputation: 49

How identify the source file as a hard link? Bash Script

I'm making a shell script that identifies hard links to a directory, but I need to know the source file. example:

Ln origen1.txt destino1.txt

Ln origen1.txt destino2.txt

Ln origen1.txt destino2.txt

The output should be origen1.txt, because this is the source file for other hard links. This should be in bash. I need help, Thank you.

Upvotes: 1

Views: 1635

Answers (2)

that other guy
that other guy

Reputation: 123570

Like people have pointed out, hard links are all equivalent. However, you can use find to find all the hard links of a file:

find / -samefile destino2.txt

It won't say which link was the first one, but it will tell you all the possible candidates.

Upvotes: 1

larsks
larsks

Reputation: 312263

You can't. If you have a file file1, and you create a hardlink to it using ln:

ln file1 file2

Then the two files are indistinguishable. A "hard link" is really just the same thing as a normal file entry; it just happens to point to the same file as another entry. You can remove either one and you're back to having a single "hard link" to the file.

Upvotes: 3

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