$ ls -alR source
source:
total 3.0K
drwxr-xr-x+ 1 Roboticus None 0 Jul 21 00:51 ./
drwxr-xr-x+ 1 Roboticus None 0 Jul 21 00:49 ../
-rw-r--r--  1 Roboticus None 4 Jul 21 00:47 bar
drwxr-xr-x+ 1 Roboticus None 0 Jul 21 00:48 bim/
-rw-r--r--  1 Roboticus None 8 Jul 21 00:47 foo
-rw-r--r--  1 Roboticus None 7 Jul 21 00:51 ignore

source/bim:
total 1.0K
drwxr-xr-x+ 1 Roboticus None  0 Jul 21 00:48 ./
drwxr-xr-x+ 1 Roboticus None  0 Jul 21 00:51 ../
-rw-r--r--  1 Roboticus None 13 Jul 21 00:48 bam