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What is kernel and shell in unix?
The kernel The kernel is the hub of the operating system: it allocates time and memory to programs and handles the filestore and communications in response to system calls. The shell The shell acts as an interface between the user and the kernel. When a user logs in, the login program checks the username and password, and then starts another program called the shell.
What is Shell in shell?
The 'shell' is a user interface program that interfaces between a user of the system and the Operating System. It is the user interface.
What is shell in os?
The 'shell' is a user interface program that interfaces between a user of the system and the Operating System. It is the user interface.
How does shell works in Linux?
Shell is the bridge between Kernel and User.
What is the operational definition of a shell?
A shell program is the interface between the user (environment) and the operating system (kernel). It allows users to specify commands and requests the operating system to execute them.
Internal parts of disk oprating system?
Not only DOS, in any Operating System, there are mainly two parts:1. Kernel: The core of OS..2. Shell: Interface between Kernel and User..
What is kernel and shell and what is the difference between these two?
A kernel is the heart of the operating system and acts as a middle ground between hardware and software. Some (if not all) device drivers are kernel-level drivers as kernelmodules. A shell is a command terminal that allows the user to interact with the user.
What is a shell in Linux?
Typically.... Bash. Could also be tcsh, zsh, or pdksh. Or something really weird. Try:echo $SHELL and see what that gets you. Shell is a software program that allows you to interact and access a computer system. User can enter commands in the shell prompt, which will be executed by the shell. Since the only means of communication through shell is text, it is known as Command-Line-Interfaceor CLI.A shell is a command interpreter and serves as a user interface to the Linux kernel
How are the shell and kernel used in Linux?
The shell is used to allow the user to interface with the operating system and run their applications. BASH is a shell, as is GNOME (Often referred to as a "graphical shell."). The kernel, on the other hand, is the core of the operating system. It manages the hardware, resources, and processes running on the sysem.
What is diffrance between Linux and unix?
Shell is a program which allows the user to access the computer system. Shell is an interface between the user and computer system. Kernel is the only way through which the programs (all programs including shell) can access the hardware. Its a layer between the appliation programs and hardware. It is the core of most of the operating systems and manages everything including the communication between the hardware and software. KERNEL is the core part of operating system. It contain modules like device modules and other modules etc. Kernel is written in C language. Basically kernel is mediator between hardware and Operating System. But SHELL is an interface between users and operating system. Both are mediator but work is totally different. Let we have an example of "eject" command in Linux operating system: User give a command to Shell through input device like keyboard and see that command on video Device like monitor, but in actual concept is user give a command to shell, then this shell transfer that command to kernel.when kernel have module of that command then it transfer to hardware like CDROM. After that hardware behave as the module in kernel and then kernel again transfer the output to Shell. And finally shell transfer that output to user. Hardware <---> Kernel <---> Shell <---> User
Explain different layers of UNIX operating system Also explain interaction between shell and kernel using any suitable command?
Layers of UNIX Operation System along with an example to illustrate the interaction between shell and Kernel.The UNIX operating system is made up of three parts: the kernel, the shell and the programs.The kernelThe kernel of UNIX is the hub of the operating system: it allocates time and memory to programs and handles the filestore and communications in response to system calls.The shellThe shell acts as an interface between the user and the kernel. The shell is a command line interpreter (CLI). It interprets the commands the user types in and arranges for them to be carried out. The commands are themselves programs: when they terminate, the shell gives the user another prompt ($ on our systems).The programsA program is refereed to as a process while the kernel is running it. The Kernel can run the same shell program(or any other program) simultaneously for many users on a Unix System, and each running copy of the program is a separate process. The Shell is also a program that the UNIX Kernel runs for the user.As an illustration of the way that the shell and the kernel work together, suppose a user types rm myfile(which has the effect of removing the file myfile). The shell searches the filestore for the file containing the program rm, and then requests the kernel, through system calls, to execute the program rm on myfile. When the process rm myfile has finished running, the shell then returns the UNIX prompt $ to the user, indicating that it is waiting for further commands.- Submitted by SRKStudent of NIITContact No. : +91-9534330837Email: shoaibrazakhan@gmail.com
Every OS has two main internal components the relates to the user and to applications and provides a command menu or icon interface whereas the is responsible for interfacing with the hardwaer?
Kernel And Shell
