Go through the basic concepts about the system processes and the command to get their status.

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.


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


Every process id spawned by its parent process. The PID of its parent is called as PPID.

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