Re: Fw: Fuck the script... I want him gone now....
On Thu, 30 Oct 1997, Kevin Traas wrote:
: Can anyone tell me what the following permission means?
:
: >drwx-----T 2 bong admin 1024 Oct 29 21:27 private
:
:
: Thanks,
: Kevin
I like the subject :) I felt that way about users yesterday ...
I created a directory with the same permissions:
kepler:~ $ mkdir test
kepler:~ $ /bin/ls -ldF test
drwxr-s--- 2 nnorman nnorman 1024 Oct 30 11:20 test/
kepler:~ $ chmod 1700 test
kepler:~ $ /bin/ls -ldF test
drwx-----T 2 nnorman nnorman 1024 Oct 30 11:20 test/
So, it's a directory, accessible only by the owner, who can also
create/delete files there. The "sticky" bit is also set (which in this
case doesn't do much at all)
However, the sticky bit is useful - consider the /tmp directory:
kepler:~ $ whoami
nnorman
kepler:~ $ /bin/ls -ldF /tmp
drwxrwxrwt 3 root root 1024 Oct 30 11:25 /tmp/
kepler:~ $ /bin/ls -lF /tmp
total 44
drwxr-xr-x 2 root root 12288 Sep 25 18:17 lost+found/
-rw-r----- 1 root root 0 Oct 30 11:25 try_to_delete_me
-rw-r--r-- 1 nnorman nnorman 31453 Oct 28 14:26 zman03143aaa
kepler:~ $ rm /tmp/try_to_delete_me
rm: remove `/tmp/try_to_delete_me', overriding mode 0640? y
rm: /tmp/try_to_delete_me: Operation not permitted
Although I can write to /tmp, which normally means I can delete any file
within /tmp no matter who owns it, the sticky bit prevents me from
deleting a file I don't own.
If you already knew that sticky bit stuff, sorry :)
--
Nathan Norman
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