6. User Management Tools
Most enterprise environments are using management systems to manage users, accounts and passwords. However, on a single machine computer there are useful commands to run to manage users.
You can use the adduser or the useradd command. The adduser command contains more helpful features such as making a home directory and more. There are configuration files for adding new users that can be customized depending on what you want to allocate to a default user.
$ sudo useradd bob
You'll see that the above command creates an entry in /etc/passwd for bob, sets up default groups and adds an entry to the /etc/shadow file.
To remove a user, you can use the userdel command.
$ sudo userdel bob
This basically does its best to undo the file changes by useradd.
$ passwd bob
This will allow you to change the password of yourself or another user (if you are root).
Create a new user then change their password and login as the new user.
What command is used to change a password?