On Friday 03 December 2010 06:28:27 Joachim Backes wrote: > On 12/03/2010 02:04 AM, Genes MailLists wrote: > > On 12/02/2010 07:42 PM, Marko Vojinovic wrote: > >> On Thursday 02 December 2010 21:02:17 Aaron Konstam wrote: > >>> On Thu, 2010-12-02 at 18:10 +0100, Joachim Backes wrote: > >>>> Can somebody explain why pure numbers are allowed for username in the > >>>> useradd command? > >>>> > >>>> sudo useradd 123456789 > >>>> > >>>> is not rejected! > >>>> > >>>> As is known, this leads to big problems if referring to such a user > >>>> and the username differs from the userid: should such a username be > >>>> interpreted as username or userid? > > See chown: allows username and userid as new owner. So if a numerical > userid is the same as a username (having another userid), which user is > meant? The user with this username, or the user with this userid? The username is assumed first, and looked up in /etc/passwd for a corresponding userid. If not found, and if the input is numeric, then it is assumed to be a userid. HTH, :-) Marko -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
