Which of the following is not a shell in Unix?

Which one of the following is not a shell in Unix system?

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Que. Which one of the following options is not a shell in UNIX system?
b. C Shell
c. Net Shell
d. Korn Shell
Answer:Net Shell

What are the main features of UNIX?

The UNIX operating system supports the following features and capabilities:

  • Multitasking and multiuser.
  • Programming interface.
  • Use of files as abstractions of devices and other objects.
  • Built-in networking (TCP/IP is standard)
  • Persistent system service processes called “daemons” and managed by init or inet.

What is the output of who command?

Explanation: who command output the details of the users who are currently logged in to the system. The output includes username, terminal name (on which they are logged in), date and time of their login etc. 11.

What is shell and its types in UNIX?

The shell provides you with an interface to the UNIX system. It gathers input from you and executes programs based on that input. … A shell is an environment in which we can run our commands, programs, and shell scripts. There are different flavors of shells, just as there are different flavors of operating systems.

How many types of shell are there?

Here is a short comparison of the all 4 shells and their properties.

Root user default prompt is bash-x. xx#.

Shell The GNU Bourne-Again Shell (Bash)
Path /bin/bash
Default Prompt (non-root user) bash-x.xx$
Default Prompt (Root user) bash-x.xx#

What is the purpose of Unix?

Unix is a multi-user operating system which allows more than one person to use the computer resources at a time. It was originally designed as a time-sharing system to serve several users simultaneous.

What are the advantages of Unix?

Advantages

  • Full multitasking with protected memory. …
  • Very efficient virtual memory, so many programs can run with a modest amount of physical memory.
  • Access controls and security. …
  • A rich set of small commands and utilities that do specific tasks well — not cluttered up with lots of special options.

What are the three major components of any Unix system?

In general, the UNIX operating system is made up of three parts; the kernel, the shell, and the programs.

  • The kernel. If we think of the UNIX operating system in terms of layers, the kernel is the lowest layer. …
  • The shell. The shell acts as an interface between the user and the kernel. …
  • The programs.
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