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? > Can you be specific - what big problems are these ? Never tried, but it is by means obvious that this would be problematic. > So I guess 12345 should be a valid username as any other, and useradd > correctly allows for creation of such usernames. No bug there. > Agreed - without knowing what the problems are it is hard to say that useradd (or anything else) should disallow numerical id's .. -- 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