erik@laptop:/root$ sudo mkdir test
erik@laptop:/root$ ls -al test
total 8
drwxr-xr-x 2 root root 4096 2006-07-22 22:59 .
drwxr-xr-x 8 root root 4096 2006-07-22 22:59 ..
erik@laptop:/root$ sudo touch test/a
erik@laptop:/root$ sudo echo "testing" > test/a
bash: test/a: Permission denied
erik@laptop:/root$ ls -al test/a
-rw-r--r-- 1 root root 0 2006-07-22 22:59 test/a
erik@laptop:/root$ sudo rm test/a
erik@laptop:/root$ sudo echo "testing" > test/a
bash: test/a: Permission denied
erik@laptop:/root$ ls -al test/
total 8
drwxr-xr-x 2 root root 4096 2006-07-22 22:59 .
drwxr-xr-x 8 root root 4096 2006-07-22 22:59 ..