You have things slightly mixed up. useradd is used to add a new user to the system. If you want to edit the attributes of an existing user, you have to use usermod. Run the following command:
This will add beoper to the list of groups that root is already a member of. Here is the man page for usermod.
Now, its been a while since i done this but I had to add a user to a group. I did that by using the usermod command and now when I superuser to the user's account and issue a "id", i get the desired gid.
i mean, output of id indicated the user is assigned to the group i want him to be in. ... (5 Replies)
How can I add a user to a specific group without using SAM? I know I can user modprpw -G, but that will overwrite any groups the user is in with the ones I specify.
I need to assume that I do not know what groups the user is already in, so I can't put them in the modprpw command. I just need... (2 Replies)
Hello
I have a group called "media" which has a 7 access to a directory with the same name, my username was not included in that group, after vimming /etc/group and adding myself to it, I notice that that group is not defined as one of my groups (by issuing the "groups" command). I know that if... (1 Reply)
Hi all,
I have a existing user user1 its group id dba
i have created a new user named: uta and added to group dba
my task for creating uta ( to ftp solaris server from /oracle/pcmia/dry1 & oracle/pcmia/dry2 and get some rdf ( database patch) and saved in one windows folder named d:\patch... (2 Replies)
Hello guys!!
If a user is already created on a server, how do you add them to another group?
The useradd command? If so then would that duplicate the user account on the server?
Thanks
Bigben (4 Replies)
Hi,
I have a 2 node Cluster. Which is working in active/passive mode (i.e Node#1 is running and when it goes down the Node#2 takes over)
Now there's this requirement that we need a mount point say /test that should be available in active node #1 and when node #1 goes down and node#2 takes... (6 Replies)
I've been through many threads before i decide to create a separate thread.
I can't really find the solution to my (simple) problem.
Here's what I'm trying to achieve:
As "canar" user I want to run a command, let's say "/opt/ocaml/bin/ocaml" as "duck" user.
The only to achieve this is to... (1 Reply)
Hi,
In the following output you can see the the user "richard" is a member on the team/group "developers":
# id richard
uid=10247(richard) gid=100361(developers) groups=100361(developers),10053(testers)
but in the following details of the said group (developers), the said user... (3 Replies)
Hi,
I am new to unix. I am facing access permission issue
I want to access path
/app/compress from a user "test" but getting permission denied error
This path exist in "Main" user
So after some googling i came to know we need to add "test" user in "main" group
so path /app/compress ... (7 Replies)
I believe there are two methods of adding a user to a group. using usermod and gpasswd. but most of the time we tent to use user mod. does there any difference between these two methods ....
gpasswd -a geek admins
usermod -a -G admins geek
both code add user geek to a group admin (1 Reply)
Discussion started by: lobsang
1 Replies
LEARN ABOUT CENTOS
groupmems
GROUPMEMS(8) System Management Commands GROUPMEMS(8)NAME
groupmems - administer members of a user's primary group
SYNOPSIS
groupmems -a user_name | -d user_name | [-g group_name] | -l | -p
DESCRIPTION
The groupmems command allows a user to administer his/her own group membership list without the requirement of superuser privileges. The
groupmems utility is for systems that configure its users to be in their own name sake primary group (i.e., guest / guest).
Only the superuser, as administrator, can use groupmems to alter the memberships of other groups.
OPTIONS
The options which apply to the groupmems command are:
-a, --add user_name
Add an user to the group membership list.
If the /etc/gshadow file exist, and the group has no entry in the /etc/gshadow file, a new entry will be created.
-d, --delete user_name
Delete a user from the group membership list.
If the /etc/gshadow file exist, the user will be removed from the list of members and administrators of the group.
If the /etc/gshadow file exist, and the group has no entry in the /etc/gshadow file, a new entry will be created.
-g, --group group_name
The superuser can specify which group membership list to modify.
-h, --help
Display help message and exit.
-l, --list
List the group membership list.
-p, --purge
Purge all users from the group membership list.
If the /etc/gshadow file exist, and the group has no entry in the /etc/gshadow file, a new entry will be created.
-R, --root CHROOT_DIR
Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.
SETUP
The groupmems executable should be in mode 2770 as user root and in group groups. The system administrator can add users to group groups to
allow or disallow them using the groupmems utility to manage their own group membership list.
$ groupadd -r groups
$ chmod 2770 groupmems
$ chown root.groups groupmems
$ groupmems -g groups -a gk4
CONFIGURATION
The following configuration variables in /etc/login.defs change the behavior of this tool:
MAX_MEMBERS_PER_GROUP (number)
Maximum members per group entry. When the maximum is reached, a new group entry (line) is started in /etc/group (with the same name,
same password, and same GID).
The default value is 0, meaning that there are no limits in the number of members in a group.
This feature (split group) permits to limit the length of lines in the group file. This is useful to make sure that lines for NIS
groups are not larger than 1024 characters.
If you need to enforce such limit, you can use 25.
Note: split groups may not be supported by all tools (even in the Shadow toolsuite). You should not use this variable unless you really
need it.
FILES
/etc/group
Group account information.
/etc/gshadow
secure group account information
SEE ALSO chfn(1), chsh(1), passwd(1), groupadd(8), groupdel(8), useradd(8), userdel(8), usermod(8).
shadow-utils 4.1.5.1 05/25/2012 GROUPMEMS(8)