A team lead asks to add jdoe to the devops and analytics groups while keeping jdoe’s current supplementary memberships intact. Which command fulfills this requirement?
usermod -aG analytics,devops jdoe
gpasswd -M jdoe devops,analytics
usermod -g analytics jdoe
usermod -G devops,analytics jdoe
The chosen command uses the short form append flag together with the group selection flag to add multiple supplementary groups without resetting any existing ones. Omitting the append option would overwrite secondary memberships. Changing the primary group only alters the default group, and gpasswd -M replaces a group’s entire membership list rather than appending for a given user.
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