Change default editor For global sudo update-alternatives --config editor # 然後選擇數字 For one user select-editor or in .bashrc
export EDITOR='vim' export VISUAL='vim' Add groups Change main group sudo groupadd mynewgroup # Add a new group usermod -g groupname username groups username Add secondary group sudo usermod -aG groupname username password policy find here find here find here vim /etc/pam.