Linux Shell Scripting Description

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What is Shell?

An Operating is made of many components, but its two prime components are -

  • Kernel
  • Shell

A Kernel is at the nucleus of a computer. It makes communication between the hardware and software possible. While the Kernel is the innermost part of an operating system, a shell is the outermost one.


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A shell in a Linux operating system takes input from you in the form of commands, processes it, and then gives an output. It is the interface through which a user works on the programs, commands, and scripts. A shell is accessed by a terminal which runs it.

When you run the terminal, the Shell issues a command prompt (usually $), where you can type your input, which is then executed when you hit the Enter key. The output or the result is thereafter displayed on the terminal.

The Shell wraps around the delicate interior of an Operating system protecting it from accidental damage. Hence the name Shell.

In this tutorial, you will learn-

  • What is Shell?
  • Types of Shell
  • What is Shell Scripting?
  • Adding shell comments
  • What are Shell Variables?

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