Linux: Find Out My Group Name [ Group Memberships ]

How do I find out the group name under Linux operating systems using bash shell prompt? How do I display group information for the specified USERNAME under Linux?

Open a command-line terminal (select Applications > Accessories > Terminal), and then type the following command to list your group ownership i.e. display the groups a user is in:
$ users
Sample outputs:

vivek adm dialout cdrom plugdev lpadmin netdev admin sambashare libvirtd

vivek user is part of the above groups. To display group memberships for a user called tom, enter:
$ users userName
$ users tom

To print the primary group membership for a user called tom, enter:
$ id -g -n tom
To print the secondary group membership for a user called tom, enter:
$ id -G -n tom
You can also search /etc/group file as follows using the grep command:
$ grep Username /etc/group
$ grep vivek /etc/group

Sample outputs:


See also:

If you need assistance with Linux groups membership related commands, turn to the man page first. It will give you detailed information, parameters and switches for the following commands:
$ man id
$ man groups
$ man 5 group

Posted by: SXI ADMIN

The author is the creator of SXI LLC and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.