#### Extended File Attributes on OS X

Anyone with some familiarity with unix filesystems will recognize the file permissions like -rw-r--r--. However, you will also notice a “+” and “@” symbol appearing to the right of the permission tables of some of the files. What are these? They are called extended file attributes.

This note explains the extended file attributes. Thanks to original poster. What Is The Significance Of “+” And “@” In Mac OS X File Permission Tables

Saving for posterity.

If you open terminal in Mac OS X and type the following:

ls -la

You will see a list of files, both visible and hidden in your home directory. The first column will show you the permission table for a particular file (for example, -rw-r--r--), which anyone with some familiarity with unix filesystems will recognize. However, you will also notice a “+” and “@” symbol appearing to the right of the permission tables of some of the files. What are these?

## The “@” symbol

This indicates that the file has additional attributes. You can see these additional attributes by typing the following command:

xattr -l <filename>

ls -le