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sealfab
Asked: 2017-12-03 08:52:20 +0800 CST

What permissions are required to read a sub directories size?

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For example

du -hs /path/to/directory

Is it possible for a user to determine to size of /directory but not have read permissions for /path/to

permissions

1 Answers

  1. No, you will get a permission denied if the user is not allowed to read the directory. Example:

    ~$ du -hs tmp/
8,0K    tmp/
:~$ sudo chmod 000 tmp
:~$ ls -ltr
total 16
d--------- 2 rinzwind rinzwind 4096 dec  2 17:55 tmp
$ du -hs tmp/
du: cannot read directory 'tmp/': Permission denied
4,0K    tmp/

    A user does NOT need read access to the file itself. 

    $ cd tmp/
:~/tmp$ ls -ltr
total 4
-rw-rw-r-- 1 rinzwind rinzwind 54 dec  2 17:55 1
:~/tmp$ sudo chmod 000 1
:~/tmp$ cd ..
:~$ du -hs tmp/
8,0K    tmp/
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