Visit Our UNIX and Linux User Community


Removing users from groups


 
Thread Tools Search this Thread
Operating Systems Solaris Removing users from groups
# 1  
Old 10-26-2009
Removing users from groups

How do I remove a user from a group? I'm using the usermod command but its not working.
I have a user "abc" who is a member of the groups root and other. I'm trying to remove him from the group "other" (using CLI) which is his secondary group but it's not working.
How do I do this? Is there any other command that I am supposed to use instead of usermod??
# 2  
Old 10-27-2009
Code:
vi /etc/group

# 3  
Old 10-27-2009
Ur doing right ... Do with usermod -g <Primary> -G <Secondry> <Username>

the above should work with out any proble..

=Hari.A.
# 4  
Old 10-27-2009
Well, it's not working. That's why I ended up posting it here!! Let me rephrase my doubt. I don't want make the user a member of any secondary group. He should continue to be a member of the primary group but I want to delete him from his secondary group. Usermod is not working.
# 5  
Old 10-27-2009
Again, as I'm afraid you missed it:
Code:
vi /etc/group

# 6  
Old 10-27-2009
Hey jlliagre,
I saw that the first time you posted.
Two issues:
1. I'm trying to find out if I can do it using usermod.
2. I have no clue how to edit the /etc/group to remove a user from there. The entry in the file is [other::1:]
So, here I am scratching my head how to edit that and remove him from the group!!

---------- Post updated at 03:50 PM ---------- Previous update was at 03:45 PM ----------

In case if my command worked and removed the user from the group, why is it still showing the group 'other' when I say [groups user]??? I'm totally lost!!

---------- Post updated at 07:32 PM ---------- Previous update was at 03:50 PM ----------

Guys,
Thanks for your support and all the suggestions. The user "was" removed from the group but it was only updated after reboot. I think I'll give it a break before I start to think why I needed a reboot!!

---------- Post updated at 07:33 PM ---------- Previous update was at 07:32 PM ----------

Guys,
Thanks for your support and all the suggestions. The user "was" removed from the group but it was only updated after reboot. I think I'll give it a break before I start to think why I needed a reboot!!
# 7  
Old 10-28-2009
This is odd. Changing group users in /etc/group shouldn't require a reboot. It doesn't here.
Another tip, after editing that file, run the grpck command (and pwck after editing /etc/passwd).

Previous Thread | Next Thread
Test Your Knowledge in Computers #143
Difficulty: Easy
Apple released a Unix system called Darwin in 2000 which became the core of the Mac OS X operating system, which was later renamed macOS.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Email the users about their existing groups

Hi Guys, I want a script where in I need to send an email to individual users about their groups. OS:unix redhat Shell :Bash. The mail should be like,"Hi &username , you are in part of &group1,&group2 .." I need to mail to their personal email id mostly @outlook. Not to their UNIX.... (1 Reply)
Discussion started by: vijay2107
1 Replies

2. UNIX for Advanced & Expert Users

Creating groups and users

Hi Could anyone please suggest how we can check in Linux if a user or a group name is already existing? In case of a user the command should also be able to specify the user with a given directory and shell. We can of course check this using a grep command but since that is just a pattern match,... (12 Replies)
Discussion started by: Dorothy
12 Replies

3. UNIX for Dummies Questions & Answers

Users in multiple groups?

Happy Thanksgiving Everyone!! I have a question about adding users to multiple groups. Thanks in advance Using Red Hat and here are the issues: Example: Users: Bob Mark Groups: SystemsAnalysts BusinessAnalysts If I am adding a user Bob to both groups (SystemsAnalysts and... (2 Replies)
Discussion started by: hansokl
2 Replies

4. Shell Programming and Scripting

users and groups /etc/group parsing

Hi, I have two little issues: 1) there is possible in sh to create a function who return a boolean value? 2)i have to verify if an user belongs to a group and i think it is needed to create a function which take two parameter and return a boolean value. in fact i have to parse /etc/group... (5 Replies)
Discussion started by: catalint
5 Replies

5. UNIX for Dummies Questions & Answers

List users and groups

Hi I am new to unix so hopefully someone can help. I need to list all the users I have in my unix enviroment (AIX) and the groups (primary and secondary) they belong to. Can anyone help? Many thanks in advance (2 Replies)
Discussion started by: m3y
2 Replies

6. Solaris

Defaults number of users and Groups

Hi All, I would like know how many of default number of users and groups are there in solaris-10... Regards Tirupathi Raju (2 Replies)
Discussion started by: tirupathiraju_t
2 Replies

7. UNIX for Dummies Questions & Answers

Finding out all users and their UNIX groups??

Is there a way to find out all users and the UNIX groups they belong to?? :) (3 Replies)
Discussion started by: Hangman2
3 Replies

8. UNIX for Dummies Questions & Answers

users and groups

hi eveyone i've recently requested my unix admin to create a userid for 2 groups. He created the id and i can see it by grep "id" /etc/group. But when i login with that id into unix and try to cd that group it says permission denied. something like cd /groupname -- permission denied Can my admin... (1 Reply)
Discussion started by: sammet
1 Replies

9. Linux

listing users and groups

RH 7.2 I'm trying to list the users & groups on my machine. I found the lsuser & lsgroup commands but no associated man pages. I typed: lsuser I get --> Valid options are: -a So I typed: lsuser -a I get --> Valid options are: groups, home So I typed: lsuser -a groups I get -->... (2 Replies)
Discussion started by: jalburger
2 Replies

10. Cybersecurity

Users and groups

Hi, Is it possible that one user belongs to many groups, or the relation of user/group is 1/1?. Thanks Ramón (2 Replies)
Discussion started by: rsanz
2 Replies

Featured Tech Videos