how to list of Groups on ubuntu server

[vaibhavsd]

how to list of Groups on ubuntu server,


and how to create user on ubuntu server

[quixote]

cat /etc/group

will list all the groups, including ones used only by the system. Just typing

groups

will list all the groups of which the current user is a member. To add a user use

sudo useradd name

To add a user to a specific group use

sudo usermod -G name-of-group -a 'name-of-user'

For more information on all these -- and it's really a good idea to make sure you know what you're doing before doing system-level commands -- you can type

info command-name

or

man command-name

For instance "man useradd".

[toofun]

I did this without adding the -a option so now I no longer have root access, and oddly enough the admin group is no longer in the /etc/group file. Does anyone know how to recover from such a scenario? The link:
http://ccollins.wordpress.com/2007/0...ubuntu-groups/

talks about a similar situation but does not talk about how to add the admin group back into the /etc/group file. It's easy to edit back in but what number do you assign it?

[matt_symes]

This is a really old thread. Closed. Please start a new thread.