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Process

File types which create processes

QuestionAnswer
A program running in memory and in the CPU Process
A program written in programming language that is compiled in a binary file that the CPU can process Binary Executable
A command that is built into the shell - e.g. echo or cd Internal Shell command
A command or commands stored in a text file. Shell executes command as if entered through the keyboard Shell Script
A process that starts when a user executes a program file e.g user launches the grep command User Process
Started by the OS, usually when it boots, but users can start them as well - most provide system services Daemon Process
Uniquely identifies each process PID (process ID)
Have Low PID numbers System_started processes
Have High PID numbers User-started processes
The process that spawned the new process Parent Process (PPID) {Parent Process ID}
Spawned process (by the PPID) Child Process
Processes with lowest PID's (<100) Core Processes
When a parent process spawns a child process that is identical to the parent Forking
Another name for a running process job
An orphaned process (without a parent) - parent failed to kill its child properly Zombie Process
Created by: johnadream