The CHARRT command is used to add special attributes to a file or directory
CHARRT +a 1.txt Add a property to the 1.txt file
Charrt-a 1.txt Remove the A attribute from the 1.txt file
Lsattr-r 1 View all the hidden properties under directory 1, all printed and displayed
Lsattr-d 1 Viewing only the hidden properties of the 1 directory
There are two types of properties, A and I:
The file a property cannot be deleted, modified, moved, renamed. However, you can use >> to append content to a file.
In the case of the file I attribute, you cannot delete, modify, move, rename, or belong to a group. Absolutely read-only, fixed dead files.
In the case of the directory I attribute, only new files can be created under this directory and cannot be deleted, modified, moved, renamed. Internal files can >> modify content
In the case of directory I properties, you cannot create new files, delete, move, rename operations under this directory.
1.9-chattr File Hidden Properties