From the course: Linux: Files and Permissions

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About extended attributes

About extended attributes - Linux Tutorial

From the course: Linux: Files and Permissions

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About extended attributes

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- [Instructor] Files in Linux have standard attributes such as the user owner, group owner, permissions, and so on. We can get these attributes using the LS file and stack commands. Files can also have extended attributes if the file system supports it which most do. Extended attributes or extensions to the normal file attributes. Just like normal attributes, extended attributes are stored with files on the disk. There are three major types of extended attributes, extended system attributes, extended security attributes, and extended user attributes. Let's take a closer look at each. First, let's look at extended system attributes which store access control lists or ACL's. ACL's provide an additional layer of discretionary access control for Linux making Linux permissions more powerful and easier to manage. With discretionary access control, access to the file is that the discretion of the owner. The owner sets…

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