This string of letters,
drwxrwxrwx, represents the permissions that are set for this folder. (Note that these are often called attributes by FTP programs.) Let’s explain what each of these letters means:
As you can see, the string of letters breaks down into 3 sections of 3 letters each, representing each of the types of users (the owner, members of the group, and everyone else). There is also a “d” attribute on the left, which tells us if this is a file or a directory (folder).