NET 4000 Chapter Notes - Chapter 9.1.3: Systemd, Zombie Process, Child Process
Document Summary
A process refers to a program that is loaded into memory and is currently running on the system cpu. The following file types can create processes on a linux system: A binary executable is a program written in a programming language that is compiled into a binary file that the cpu can execute. An internal shell command is a command built into the shell executable. A script is a text file that contains one or more commands. When the shell reads the file, it executes the commands as if they were entered through the keyboard. Be aware of the following types of processes: User processes start when a user executes a program file. For example, a user starts a user process when she executes the grep command. System processes (also known as daemon processes) are started by the operating system, usually when it boots.
