I know that to add a group in Ubuntu I use the command groupadd and to add a use

Question

I know that to add a group in Ubuntu I use the command groupadd and to add a user to that group I use useradd. I am having trouble understanding how to do the attributes the way it is asking.

Part 1: User and Group Creation

“sudo su -“

Create 3 new groups:

cs

math

science

Create 2 new users named “steve” and “lucy” with the following attributes:

default shell is /bin/bash

comment (GECOS) field contains full names (Steve Smith / Lucy Goosey)

steve primary group = math additional group = science

lucy primary group = cs additional group = science

Make your own account members of all three groups.

Explanation / Answer

Creating a group

sudo addgroup CS

sudo addgroup Math

sudo addgroup Science

Creating a user into this group

sudo SteveSmith Science

sudo LucyGoosey Science

If you want to set the primary group for a user, then you can type

sudo usermod –g Science SteveSmith

sudo usermod –g Science LucyGoosey

If you want your user to be member of multiple groups you can use

sudo usermod –G Math,Science SteveSmith

sudo usermod –G CS,Science LucyGoosey

Note : the ‘–G’(caps)

To keep a comment you can use

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