Shell

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The shell or command shell is a software program that provides direct communication between the user and the operating system. The term shell is also rarely applied to a software that is built around a particular component or for a software that provides a user interface for another program.

Shell definition

A shell is software that provides an interface between users and operating system of a computer to access the services of a kernel.

There are two types of shell:

1. Command-line shell (eg. Bash(sh), Command Prompt(cmd), C shell, Bourne shell, Korn shell(ksh) etc.)
2. GUI Shell (eg. Windows Explorer or Windows Shell)

A third type of shell is recently developed – a GCLI(Graphical Command Line Interface) shell. A GCLI shell combines the features of both CLI and GUI shell and provides an interface which is both user-friendly and powerful.

External links:

• GCLI Shell – FireCMD