From the course: Linux: System Information and Directory Structure Tools

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About extended attributes

About extended attributes - Linux Tutorial

From the course: Linux: System Information and Directory Structure Tools

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About extended attributes

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- [Instructor] Linux files have standard attributes, such as file ownership, permissions, and so on. We can get these attributes using standard commands, such as ls, file and stat. Linux files can also have extended attributes if the Linux file system supports it, which most do. Extended attributes are 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, we'll look at extended system attributes, which store access control list or ACLs. ACLs 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 at the discretion of the owner. The owner…

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