Red Hat System Administration I
In this chapter, you learned:
A process is a running instance of an executable program. Processes are assigned a state, which can be running, sleeping, stopped, or zombie. The ps command is used to list processes.
Each terminal is its own session and can have foreground process and independent background processes. The jobs command displays processes within a terminal session.
A signal is a software interrupt that reports events to an executing program. The kill, pkill, and killall commands use signals to control processes.
Load average is an estimate of how busy the system is. To display load average values, you can use the top, uptime, or w command.
