Ubuntu user management command line

Change user password
To change self password
#passwd
To change other user password
#passwd username

Removes the user’s home directory as well as deleting the user
#sudo userdel -r [username]

Add new user:
#sudo adduser <username>

Add user to admin
#sudo adduser <username> admin

Add user to sudoer
#visudo

Switch user
sudo <username>

By Keenlio, November 14, 2014