Originally Posted by trickykid
A daemon is a program or process that sits idly in the background until it is invoked to perform its task. xinetd is a way to configure and control such services like daemons on your system.
THANKS! What does the "?" that apears under TTY column means, when "ps -e" command is typed. Does it mean "OK this process is a daemon". Does the "?" appear for the processes other than daemons? Or am I worying too much?