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How do I add a user to multiple groups in Ubuntu?

Fresh3 days ago
Mar 15, 2026208285 views
Confidence Score1%
1%

Problem

What's the command line utility and the arguments it requires?

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Fix for: How do I add a user to multiple groups in Ubuntu?

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The utility is and is used like: Where is the user you want to modify and and are the new groups you want that user to join. Running the command without the argument will remove that user from all groups except and . To check a users group memberships use the command:

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