To add a user to Red Hat Linux, you can enter a command from the # prompt. You will need the first and last name of the user and the user password. You will need to login as root.
Enter this command:
# useradd -c ‘First and Last Name’ login_name
# passwd login_name
Enter the password for this user.
To remove a user, enter this command:
# userdel -r login_name