usermod

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usermod command included in passwd package: https://linux.die.net/man/8/usermod

Add an additional secondary group:

  • sudo usermod -aG sudo YOUR_USERNAME
  • usermod -a -G YOUR_GROUP YOUR_USERNAME

Change primary group for user:

usermod -g yournewprimarygroupname yourusername
usermod -s /usr/sbin/nologin myuser
ssh and scp will fail

You may need to start a new login shell after adding user: su - USERNAME

sudo usermod -l newusername oldusername change user name

Related commands

See also

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