URL:
<http://savannah.gnu.org/bugs/?28341>
Summary: chown does not support non-root usage
Project: GNU Core Utilities
Submitted by: None
Submitted on: Fri 18 Dec 2009 07:58:38 PM UTC
Category: None
Severity: 3 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
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Details:
Any attempts to change a file from one owner to another fails, even if the
owner is a member of the same group, and the directory is writable. For
example:
> dir -a
drwxrwsr-x 7 www-data www 4.0K 2009-09-14 14:14 .
drwxrwsr-x 11 www-data www 4.0K 2009-11-05 16:16 ..
-rw-rw-r-- 1 www-data www 2.1K 2009-12-18 14:16 file.txt
> chown user file.txt
chown: changing ownership of `file.txt': Operation not permitted
Yet this works just file:
> cp file.txt file.txt.takeown
> rm file.txt
> mv file.txt.takeown
> touch -m -d 2009-12-18 14:16 file.txt
> chown 664 file.txt
> dir
-rw-rw-r-- 1 user www 2.1K 2009-12-18 14:16 file.txt
The chown command should detect conditions like this and allow for the user
to take over ownership of a file without the need for unnecessary file access
or adjustment commands.
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