ls -la
total 43284
drwxr-xr-x   3 root root     4096 Apr  1 11:18 .
drwxr-xr-x  17 root root     4096 Mar 11 19:30 ..
-rw-r--r--   1 root root   871070 Jan 22 19:02 grsecurity-2.1.10-2.6.19.2-200701222307.patch
drwxrwxr-x  19 root root     4096 Mar 23 12:52 linux-2.6.20.4
-rw-r--r--   1 root root 43373415 Mar 23 12:56 linux-2.6.20.4.tar.bz2