CODEWITHSUNDEEP
ftpchmod
morandi3
morandi3

Reputation: 1115

chmod - deny file delete for the owner of the directory

I have a folder with drwxrwxr-x permissions, where the owner is uploading his own files. I want to upload on that directory a readme file. The owner of the folder shouldn't have the right to delete that file. How I can do that? What rights should I set for the directory & for the file.

Upvotes: 0

Views: 936

Answers (2)

Mark Plotnick
Mark Plotnick

Reputation: 10271

There are ways of doing this with ACLs, but the easiest way, if your OS supports it, is to make readme an immutable file. A file with the immutable flag can't be modified, deleted, or renamed, even by the owner or the owner of the containing directory. On Linux, this would be done with sudo chattr +i /path/to/directory/readme. On Linux, not even the owner of a file can remove the immutable flag (well, unless the owner can run a process with the CAP_LINUX_IMMUTABLE capability).

Upvotes: 1

charlesw
charlesw

Reputation: 612

The file should have drwxr--r--, this way only you, the owner of the file, have the ability to delete it.

chmod 744 <file>

Upvotes: 0

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