localhost ~ # cd /usr/src/linux
localhost linux # ls -l
total 408
-rw-r--r--  1 root root 18693 Nov  3 03:51 COPYING
-rw-r--r--  1 root root 89536 Nov  3 03:51 CREDITS
drwxr-xr-x 56 root root  4096 Nov  3 03:51 Documentation
-rw-r--r--  1 root root  1273 Nov  3 03:51 Kbuild
-rw-r--r--  1 root root 70835 Nov  3 03:51 MAINTAINERS
-rw-r--r--  1 root root 70694 Nov  3 03:51 MAINTAINERS.orig
-rw-r--r--  1 root root 44705 Nov  3 03:51 Makefile
-rw-r--r--  1 root root 16538 Nov  3 03:51 README
-rw-r--r--  1 root root  3065 Nov  3 03:51 REPORTING-BUGS
drwxr-xr-x 26 root root  4096 Nov  3 03:51 arch
drwxr-xr-x  2 root root  4096 Nov  3 03:51 block
drwxr-xr-x  2 root root  4096 Nov  3 03:51 crypto
drwxr-xr-x 59 root root  4096 Nov  3 03:51 drivers
drwxr-xr-x 60 root root  4096 Nov  3 03:51 fs
drwxr-xr-x 40 root root  4096 Nov  3 03:51 include
drwxr-xr-x  2 root root  4096 Nov  3 03:51 init
drwxr-xr-x  2 root root  4096 Nov  3 03:51 ipc
drwxr-xr-x  4 root root  4096 Nov  3 03:51 kernel
drwxr-xr-x  5 root root  4096 Nov  3 03:51 lib
drwxr-xr-x  2 root root  4096 Nov  3 03:51 mm
drwxr-xr-x 36 root root  4096 Nov  3 03:51 net
-rw-r--r--  1 root root    52 Nov  3 03:51 patches.txt
drwxr-xr-x  8 root root  4096 Nov  3 03:51 scripts
drwxr-xr-x  4 root root  4096 Nov  3 03:51 security
drwxr-xr-x 16 root root  4096 Nov  3 03:51 sound
drwxr-xr-x  2 root root  4096 Nov  3 03:51 usr
localhost linux #