Creating, deleting and modifying local user accounts (useradd -u -G -s -c, usermod, userdel -r)

Local user accounts are defined in files on the system itself, as opposed to accounts from a central directory. RHCSA tasks ask you to create users with specific properties, change them later and remove them cleanly. The three tools are useradd, usermod and userdel, and they share most of their options.