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Processes

Explore the concept of processes in Bash as running instances of programs. Understand the terms PID and PPID, and learn how to use the ps command with options to list and filter active processes. By the end, you will be able to monitor and analyze process statuses effectively.

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A process is a running instance created when a program or a software system is initiated. They can be perceived as programs in action. Processes are often referred as tasks.

PID:

Every process has a unique identifier assigned to it at the time of its creation, known as PID (process identifier).

PPID:

Every process id spawned by its parent process. The PID ...