Linux Basics and Commands
Linux : Linux is one of popular version of UNIX operating System It is the interface between the user and the hardware. It performs a variety of tasks including file handling, memory management, controlling hardware devices, process management and many more. There are various versions of Unix: Solaris Unix, HP Unix, AIX, etc. Linux is is free and open source. Unix/Linux is popular in enterprise-level because it supports multiple user environment. Linux Operating System has primarily three components. 1. Kernel 2. Shell Kernel: Kernel is the core of the operating system that controls all the tasks of the system . It consists of various modules, and it interacts directly with the underlying hardware. Kernel provides the required abstraction to hide low level hardware details to system or application programs. It contains all the basic, low-level things that are needed to make the computer work and provides a framework for all other software to run on