docs.sun.com
search for 'man ls'
first link is man page for ls
Using page search feature build into my browser I looked for +
First hit is what you're looking for
Quote:
The next 9 characters are interpreted as three sets of three bits each. The first set refers to the owner's permissions; the next to permissions of others in the user-group of the file; and the last to all others. Within each set, the three characters indicate permission to read, to write, and to execute the file as a program, respectively. For a directory, execute permission is interpreted to mean permission to search the directory for a specified file. The character after permissions is an ACL or extended attributes indicator. This character is an @ if extended attributes are associated with the file and the -@ option is in effect. Otherwise, this character is a plus sign (+) character if a non-trivial ACL is associated with the file or a space character if not.
So the + means there's an ACL on the file.
ls(1) – list contents of directory (man pages section 1: User Commands) - Sun Microsystems
By the way. I owe 30% of my career to documentation such as man pages. Reading the docs is part of what made me a senior systems admin. In fact I
just finished a 12 hour shift doing Solaris patching where obscure kernel patch and ZFS issues were solved by man pages and Sun articles.