# chattr # Change attributes of files or directories. # More information: <https://manned.org/chattr>. # Make a file or directory immutable to changes and deletion, even by superuser: chattr +i path/to/file_or_directory # Make a file or directory mutable: chattr -i path/to/file_or_directory # Recursively make an entire directory and contents immutable: chattr -R +i path/to/directory $Follow @igor_chubin cheat.sh tldr