Here is 5.2.1 behavior. Please note the difference in output when id -Gn is invoked with/without a user name. Is this fixed in 5.3.0? I do not see a reference to "id" in the list of changes, but maybe I missed it.
id -Gn without a user name gives double output for most groups that a user is a member of. --- $ id --version id (coreutils) 5.2.1 Written by Arnold Robbins and David MacKenzie. Copyright (C) 2004 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $ id -Gn root adm adm wheel wheel news news apache apache cvs cvs cvsadm cvsadm webadm webadm $ whoami blahblah $ id -Gn blahblah root adm wheel news apache cvs cvsadm webadm --- For reference, please consider this correct behavior from an old version that is consistent in both cases when a user name is provided and when one is not. --- $ id --version id (GNU sh-utils) 2.0.11 Written by Arnold Robbins and David MacKenzie. Copyright (C) 2000 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $ id -Gn blahblah root news cvs cvsadmin webadmin backups $ whoami blahblah $ id -Gn blahblah blahblah root news cvs cvsadmin webadmin backups --- Kevin R. Bulgrien Product Engineer General Dynamics C4 Systems http://www.tripointglobal.com/ VertexRSI 1915 Harrison Road Tel: 903-295-1480 x288 Longview, TX 75604-5438 Fax: 903-295-1479 CONFIDENTIAL/PROPRIETARY Unless otherwise indicated, all information (and attachments) contained in this e-mail communication are confidential and proprietary information owned exclusively by the sender and/or it's related or affiliated companies and shall not, without the prior written consent of the sender, be used, disclosed, distributed, or reproduced, in whole or in part, by anyone other than the individual or entity to whom this communication is addressed. All use of this data is exclusively restricted to the purpose expressly indicated within this communication. This e-mail communication is intended for the use of the individual or entity to whom it is addressed. If you are not the intended recipient of this communication, you are hereby notified that any use, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us at once at [EMAIL PROTECTED] so that we may take appropriate action, and destroy any copies, electronic, paper, or otherwise, that you may have of this communication. _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
