How do I find out in which groups Ubuntu Linux users belong to? How do I find out Ubuntu Linux group membership for a particular user named tom?
You can use any one of the following command to list a groups a user belongs to:
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a) id command – Display real and effective user and group IDs.
b) groups command – Display the groups a user is in on Ubuntu Linux.
Ubuntu: See which groups your Linux user belongs to
Open the Terminal app or login to the remote server over the ssh based session. Type the following id command $ id -Gn
To display the groups a user named ‘tom’ is in on Ubuntu Linux, enter: $ id -Gn tom
You can also use deprecated groups command as follows: $ groups $ groups tom
Sample outputs: Fig. 01: groups and id command on Ubuntu
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