Daum src # ls -la /usr/src/
total 4
drwxr-xr-x  5 root root  192 Nov 18 14:51 .
drwxr-xr-x 16 root root  472 Oct 16 15:06 ..
-rw-r--r--  1 root root    0 Jul 26  2005 .keep
lrwxrwxrwx  1 root root   15 Nov 18 14:51 linux -> linux-2.6.17.6/
drwxr-xr-x 20 root root 1360 Aug 26 11:12 linux-2.6.15.1
drwxr-xr-x 20 root root 1392 Nov 18 14:27 linux-2.6.17.13
drwxr-xr-x 20 root root 1416 Nov 18 15:56 linux-2.6.17.6