I can't believe... I tested it here and you are right. I always tought that you needed permissions to the file to delete it. I think it is a big security problem anyway...
bash-2.05b$ mkdir test
bash-2.05b$ cd test
bash-2.05b$ ls -la
total 12
drwxr-xr-x 2 dcid devteam 4096 Aug 3 08:57 .
drwxr-xr-x 65 dcid devteam 8192 Aug 3 08:57 ..
bash-2.05b$ sudo touch file1
bash-2.05b$ ls -la
total 12
drwxr-xr-x 2 dcid devteam 4096 Aug 3 08:58 .
drwxr-xr-x 65 dcid devteam 8192 Aug 3 08:57 ..
-rw-r--r-- 1 root root 0 Aug 3 08:58 file1
bash-2.05b$ rm file1
rm: remove write-protected regular empty file `file1'? y
bash-2.05b$ ls
bash-2.05b$ ls -la
total 12
drwxr-xr-x 2 dcid devteam 4096 Aug 3 08:58 .
drwxr-xr-x 65 dcid devteam 8192 Aug 3 08:57 ..
bash-2.05b$ sudo mkdir dir1
bash-2.05b$ ls -la
total 16
drwxr-xr-x 3 dcid devteam 4096 Aug 3 08:59 .
drwxr-xr-x 65 dcid devteam 8192 Aug 3 08:57 ..
drwxr-xr-x 2 root root 4096 Aug 3 08:59 dir1
bash-2.05b$ rmdir dir1
bash-2.05b$ ls
bash-2.05b$ ls -la
total 12
drwxr-xr-x 2 dcid devteam 4096 Aug 3 08:59 .
drwxr-xr-x 65 dcid devteam 8192 Aug 3 08:57 ..
*hum... this is why we need the sticky bit in the "tmp" dir.. I completely forgot about it. |