On 11/08/2017 11:54 AM, kalle wrote:
info chmod doesn't say, which users can apply it successfully. The same
for info chown.
Well, it does - indirectly:
https://www.gnu.org/software/coreutils/manual/html_node/chmod-invocation.html#chmod-invocation
[...] This behavior depends on the policy and functionality of the
underlying chmod system call. When in doubt, check the underlying
system behavior.
Unfortunately, the above is mentioned in the context of set-
user-ID and set-group-ID, although it generally applies.
For GNU/Linux systems, this usually means that only root and the owner
of the file can chmod(2).
Are the related man-pages also maintained by GNU coreutils? They also
have the same deficiencies...
Also here, this is documented ... but also in the 'SETUID AND SETGID BITS'
context.
Have a nice day,
Berny