Resource Topic: CentOS 6
How to Remove (Delete) a User on CentOS 6
Working from CentOS 6 server as root, these instructions are intended specifically for removing a user on the operating system.
chkconfig Command Examples for Red Hat and CentOS
Working from a CentOS 7 server as root, these instructions are intended specifically for checking and updating chkconfig.
How to Add a User and Grant Root Privileges on CentOS 6.5
Working from a CentOS 6.5 server as root, these instructions are intended specifically for adding a user on this operating system.