question on $usermod -G option

Shan_2 — Tue, 06 Jul 2004 05:09:13 GMT

Hi,
I am creating a shell script to assign secondary groups to a user.

I would like to know the exact usage of "usermod -G".

I have tried these syntax but all failed:

(1) # usermod -G usrgrp2, usrgrp3 user1
ERROR MESSAGE:
User name must be specified
Usage: usermod [-u [-o]] [-g [-G [, [-d [-m]] [-s ] [-c ] [-f <inactive>] [-e <expire>] [-l <new logname>] <login> (2) # usermod -g usrgrp1 -G usrgrp2, usrgrp3 user1 ERROR MESSAGE: User name must be specified Usage: usermod [-u <uid> [-o]] [-g <group> [-G <group>[,<group...> [-d <dir> [-m]] [-s <shell>] [-c <comment>] [-f <inactive>] [-e <expire>] [-l <new logname>] <login> (3) # usermod -G "usrgrp2, usrgrp3" user1 ERROR MESSAGE: Group usrgrp3 does not exist Group list specified with -G is invalid (4) # usermod -G "usrgrp2 usrgrp3" user1 ERROR MESSAGE: Group usrgrp2 usrgrp3 does not exist Group list specified with -G is invalid (5) # usermod -G usrgrp2 -G usrgrp3 user1 ERROR MESSAGE: Duplicate Option G Usage: usermod [-u <uid> [-o]] [-g <group> [-G <group>[,<group...> [-d <dir> [-m]] [-s <shell>] [-c <comment>] [-f <inactive>] [-e <expire>] [-l <new logname>] <login> I have also tried to issue consecutive "usermod -G" but only the last group would be added as the secondary group. Any suggestion ? Thanks a lot!

Re: question on $usermod -G option

Simon Hargrave — Tue, 06 Jul 2004 05:15:59 GMT

Try the command without spaces after commas, eg: -

usermod -G group1,group2,group3 user1

instead of

usermod -G group1, group2, group3 user1

The manpage is slightly misleading, but with spaces the parameters will not be interpreted correctly.

Sy

Re: question on $usermod -G option

Shan_2 — Tue, 06 Jul 2004 05:18:31 GMT

Thank you Simon, it Works!

topic Re: question on $usermod -G option in Operating System - HP-UX

question on $usermod -G option

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Re: question on $usermod -G option