cheat:usermod
# Add user to sudo group
sudo usermod -aG sudo <username>
tldr:usermod
# usermod
# Modifies a user account.
# See also: `users`, `useradd`, `userdel`.
# More information: <https://manned.org/usermod>.
# Change a username:
sudo usermod --login new_username username
# Change a user id:
sudo usermod --uid id username
# Change a user shell:
sudo usermod --shell path/to/shell username
# Add a user to supplementary groups (mind the lack of whitespace):
sudo usermod --append --groups group1,group2,... username
# Change a user home directory:
sudo usermod --move-home --home path/to/new_home username
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cheat.sh