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Types of processes

In Linux, there are three types of processes: interactive, batch and daemon.

Interactive processes are those which are run by a user at the command line are called interactive processes.

Batch processes are processes that are not associated with the command line and are presented from a list of processes. Think of these as “groups of tasks”. These are best at times when the system usage is low. System backups, for example, are usually run at night since the daytime workers aren’t using the system. When I was a full-time system administrator, I often ran disk usage inventories, system behavior analysis scripts, and so on, at night.

Interactive processes and batch jobs are not daemons even though they can be run in the background and can do some monitoring work. They key is that these two types of processes involve human input through some sort of terminal control. Daemons do not need a person to start them up.

Číst dál: DAEMON