On 12/18/2013 09:46 AM, Jeff Kirkpatrick wrote:
> However, I don't see explicit reasons for the non-zero exit code. If you
> want to ask for the reason, you may write an emailto [email protected]."
> 
> Can anyone elaborate on why the decision to use a non-zero exit code?

Because POSIX requires a non-zero exit code any time an error message is
output, including when a directory is skipped due to a directory loop.

http://pubs.opengroup.org/onlinepubs/9699919799/utilities/du.html

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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