Question

Shell is a _______ that is used to pass commands to the OS.

Answer 1

• Shell is a command interpreter that is used to pass commands to the OS.
• The shell is the command interpreter in an operating system such as Unix or GNU/Linux, it is a program that executes other programs.
• It provides a computer user an interface to the Unix/GNU Linux system so that the user can run different commands or utilities/tools with some input data.
• When the shell has finished executing a program, it sends an output to the user on the screen, which is the standard output device.
• For this reason, it is referred to as the “command interpreter”.
• Various types of shells are available to the user based on your admin’s configuration for you when he created an account for you.
• You can check what type of shell you are using by using this command :   echo $SHELL.

Answer 2

Shell is a command line interface that is used to pass commands to the OS

Explanation:

Shell is a user interface that access operating system use either a command line interface (CLI) or graphical user interface (GUI) that is depending on the role of computer.

CLI is used for command and the calling syntax.