What is Shell in Linux?

Question

What is Shell in Linux?

Answer 1

Shell in Linux is a program that offers the interface between the operating system and the user. As soon as the user logs in, the operating system begins a shell for them. It collects input from you before executing the program based on the given input. Finally, it displays the output of the program once the execution is completed.

Shell environment allows you to run various programs, commands, and shell scripts. Just like there are various types of operating systems, there are a few types of shells. The various types of Linux Shell include:

• C Shell: It consists of various programming features such as built-in C-like and arithmetic expression syntax.
• Bourne Shell: It is faster and generally more preferred. However, it does not have the feature of recalling previous commands, and logical and arithmetic expression handling.
• Korn Shell: It includes built-in C-like and arithmetic arrays, string manipulation facilities, and functions. It is comparatively faster than the C shell.
• GNU Bourne-Again Shell: It is compatible with the Bourne shell. It contains features of both Bourne and Korn shell.

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