Linux Beginner

What is Process?

A running instance of a program, with its own memory space, process ID, and system resources.

Every running program creates at least one process. Each process has a unique PID (Process ID), its own memory space, environment variables, and file descriptors. Processes can spawn child processes using fork().

Tools like ps, top, and htop display running processes. Signals like SIGTERM (graceful stop) and SIGKILL (force stop) control process behavior.

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A command that builds and executes commands from standard input, useful for processing lists of items.

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A utility that manages automatic rotation, compression, and removal of log files to prevent disk space exhaustion.

Procfs (/proc)

A virtual filesystem in Linux that provides an interface to kernel data structures, exposing process and system information as files.

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A background process that runs continuously on a system, typically providing services like web serving or logging.

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What is Process?

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