userdel is used in Unix / Linux systems to remove a user from the system.
-h –help; Display the help/man information and exit
-r –remove; this flag will remove the user’s home directory and associated mail. If the user is logged in or has processes running, this command will not work.
-f –force; force the removal of the user even if the user is logged in. This should only be used as a last resort as it could potentially damage your file systems.
SYNTAX: # userdel -r/-f/-h username.