what does the @ symbol mean in ls -l directory listing? [duplicate]

Possible Duplicate:
ls -la symbolics… what does that last symbol mean?

When I run ls -l on my mac I see two .yml files:

-rw-r--r-- 1 aa staff 6 Apr 15 05:50 s1.yml
-rw-r--r--@ 1 aa staff 362 Apr 15 05:49 s3.yml

same owner, same permissions but one has a @ at the end of the permisions. The one with the @ shows up in my editor, the one without does not. So there must be some significance. How can I turn on the @ for the file without it? I selected the files in the finder and did get info and everything looks identical between the two files.

2 Answers

It indicates that the file has extended attributes, it is mac specific. The command xattr deals with those attributes, so try xattr -h to see its parameters.

Those indicate extended attributes. Try this:

$ ls -a -l -@
total 1576
drwxr-xr-x+ 76 paul staff 2584 Apr 13 17:52 .
drwxr-xr-x 5 root admin 170 Aug 22 2009 ..
-rw-r--r--@ 1 paul staff 24580 Feb 28 22:07 .DS_Store com.apple.FinderInfo 32