Linux command which group

How to find out what group a given user has?

This appears to be pretty useful as well. It has more verbose output than the ‘groups’ command, so if you need the group id/user id use this!

On Linux/OS X/Unix to display the groups to which you (or the optionally specified user) belong, use:

which is equivalent to groups [user] utility which has been obsoleted on Unix.

On OS X/Unix, the command id -p [user] is suggested for normal interactive.

Explanation on the parameters:

-G , —groups — print all group IDs

-n , —name — print a name instead of a number, for -ugG

-p — Make the output human-readable.

or just study /etc/groups (ok this does probably not work if it uses pam with ldap)

Below is the script which is integrated into ansible and generating dashboard in CSV format.

sh collection.sh #!/bin/bash HOSTNAME=`hostname -s` for i in `cat /etc/passwd| grep -vE "nologin|shutd|hal|sync|root|false"|awk -F':' '' | sed 's/[[:space:]]/,/g'`; do groups $i; done|sed s/\:/\,/g|tr -d ' '|sed -e "s/^/$HOSTNAME,/"> /tmp/"$HOSTNAME"_inventory.txt sudo cat /etc/sudoers| grep -v "^#"|awk ''|grep -v Defaults|sed '/^$/d;s/[[:blank:]]//g'>/tmp/"$HOSTNAME"_sudo.txt paste -d , /tmp/"$HOSTNAME"_inventory.txt /tmp/"$HOSTNAME"_sudo.txt|sed 's/,[[:blank:]]*$//g' >/tmp/"$HOSTNAME"_inventory_users.txt 

My output stored in below text files.

cat /tmp/ANSIBLENODE_sudo.txt cat /tmp/ANSIBLENODE_inventory.txt cat /tmp/ANSIBLENODE_inventory_users.txt 

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How to see which groups a user is member of in Debian 10

This small tutorial is going to teach you how to check which groups user account belongs to in Debian 10 and how to add or remove users from groups. However, the steps in this tutorial will work for most other Linux distributions too.

How to see which groups a Linux user belongs to

Open up the terminal and run the following command:

This will show you all the groups currently logged in user belongs to.

Similarly, if you want to check the groups for a specific user, the command should look like. Replace username with the actual user.

Suppose, you want to check which groups a user ‘karim’ belongs to, execute the following command on terminal.

How to add a user to a specific group

You can add a user to a specific group with the help of usermod command. The syntax of complete command should look like as follows.

Suppose you want to add a user karim to the sudo group, run the following command in the terminal with root privileges.

Similarly, if you want to remove a user from a specific group, execute the following command with root privileges. Replace the actual group and user name.

How to remove a user from a specific group

Suppose you want to remove the user karim from a sudo group, the command should look like.

Thank you for reading. I hope this tutorial has been useful to you.

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How to Check the User Group(s) an Ubuntu User Belongs To

As a system administrator, you can create and manage groups for the user accounts on your Linux system. This way, you can assign administrative & configuration rights to Ubuntu users and files & folder access permissions to an entire group rather than a single user at a time. Sometimes you might need to know which user group a user belongs to verify or perform group management operations or to assign/de-assigning user rights. This article will describe the commands step-by-step that can be used to determine which group a user is a member of.

Open the Ubuntu Terminal through Ctrl+Alt+T or the Dash or connect to the Ubuntu system by SSH.

Enter the following command to see which group the current user belongs to:

This command lists all the groups that you belong to.

Enter the following command to check which group a particular user belongs to:

You can also use the following command to list the group members and their GIDs.

Here is an example for the ‘guest’ user:

The gid output represents the primary group assigned to a user.

Enter the exit command in order to close the terminal window in case you do not want to work further.

Through this simple procedure, you can perform a simple check of a user account’s group information.

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Vitux.com aims to become a Linux compendium with lots of unique and up to date tutorials.

Latest Tutorials

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How to Find out Which Groups a User Belongs to in Ubuntu 20.04

A group is a collection of user accounts that have the same set of permission and access rights on the files, folders, and configurations. When a new user is created in Linux OS, it is automatically added to a group with the same name as the user. A single user can be a part of single or multiple groups.

Sometimes, we need to find out which groups a user belongs to. It helps to understand what type of permissions users have and troubleshoot when things are not working properly. In this post, we will show how to find out which groups a user belongs to in Ubuntu.

Note: The commands mentioned here have been tested on Ubuntu 20.04 LTS. These commands also applies for other Linux distributions.

How to Find Which Groups a Linux User Belongs To

First, open the Terminal by pressing the Ctrl+Alt+T shortcut. Then in order to check the groups the current user account belongs to, type groups in the Terminal and press Enter:

It will show the groups to which the currently logged-in user belongs to. For example, the following output is showing the name of the groups to which the currently logged-in user “kbuzdar” is a member of.

To find groups information for a specific user other than the current logged in user, type groups followed by that username:

For example, to find which groups a user named “test” belongs to, the command would be:

Alternatively, you can also use the id command to find out which groups a current logged in user belongs to:

It will show all the groups along with their group IDs to which the currently logged-in user belongs to.

To find groups information for a user other than the current logged in user, type id followed by the username:

List All Groups in Linux

If you want to list all groups that exist in your system, issue the following command in Terminal:

This command will list all the groups that exist in your system.

Likewise listing all groups, you can also list all users on your system.

List All Members of a Group

If you want to list all members of a group, issue the following command in the Terminal:

This command will print the group name followed by all its members. For example, to print all the members of the “sudo” group, the command would be:

The following output shows the “sudo” group has two members: “kbuzdar” and “ummara”.

Bonus:

Adding User in a Group

If you want to add a user to a group, use the following command syntax:

For instance, to add an already existing user “ummara” to the “sudo” group, the command would be:

$ sudo usermod -aG sudo ummara

Removing User from a Group

To remove a user from a group, use the following command syntax:

For instance, to remove the user “ummara” from the “sudo” group, the command would be:

$ sudo gpasswd -d ummara sudo

By following the procedure shared in this post, you can easily find out which groups a user belongs to in Ubuntu. We have also shared how to list all groups in a system, list members of a group, add and remove a user from the group. For information about adding/removing users in a system, visit our post on how to add and remove users on Ubuntu.

Ummara Mushtaq is a Telecommunication engineer with two years of experience in server support and networking. She writes technical articles based on Linux system administration for LinuxWays.

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