How to Check the Ubuntu User Groups

As a system administrator, creating and managing user groups is a fundamental aspect of maintaining a secure and organized Linux system. There are occasions when you need to verify a user’s group membership or perform group management operations. In Ubuntu, this can be easily accomplished using the terminal.

1. Check Your Own Groups:

Open the Ubuntu Terminal using Ctrl+Alt+T or the Dash and enter the following command to view the groups to which the current user belongs:

groups

groups

This command provides a comprehensive list of all the groups associated with the current user.

2. Check Specific User’s Groups:

To determine the groups a particular user belongs to, use the following command:

groups [username]

Replace [username] with the actual username you want to investigate. For example:

groups manikandan

groups root

3. Display Group Members and GIDs:

Another useful command is id, which not only lists the groups a user belongs to but also provides additional information, such as Group IDs (GIDs). Execute the following command:

id [username]

For instance, to get details for the ‘manikandan’ user:

id manikandan

id username

The gid output specifically indicates the primary group assigned to the user.

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By employing these commands, you can effortlessly perform checks on user account group information, facilitating efficient user group management on your Ubuntu system.

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