General Information
Expect to create some local user accounts and add them to groups on the exam.
User IDs
User files
Useradd default settings:
Login default settings
Add user with default settings
useradd rjones
Adding a user with a specific UID
useradd -u 5000 rjones
User comment, usually for a full name (also known as the GECOS field)
usermod -c "Robert Jones" rjones
Lock user account password (user cannot login with password)
usermod -L rjones
Unlock user account
usermod -U rjones
Stop user from logging into a shell
usermod -s /sbin/nologin rjones
Delete user account
userdel rjones