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How to Make File and Directory Undeletable, Even By Root in Linux

On Unix-like operating systems including Linux, root is the account or user name that by default can modify all directories and files on a system. In this article, we’ll show how to make directories or files unremovable even by the root user in Linux.

Originally Published at https://www.tecmint.com/make-file-directory-undeletable-immutable-in-linux/