Welcome to the Unix Shell MCQs Page

Dive deep into the fascinating world of Unix Shell with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Unix Shell, a crucial aspect of UNIX. In this section, you will encounter a diverse range of MCQs that cover various aspects of Unix Shell, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within UNIX.

Check out the MCQs below to embark on an enriching journey through Unix Shell. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of UNIX.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Unix Shell. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Unix Shell MCQs | Page 14 of 18

Explore more Topics under UNIX

01

Introduction to UNIX

02

Unix File System

03

Vi Editor

04

Jobs and Processes

05

Filters and Regular Expressions

06

Shell Programming

07

Basic System Administration

Q131.

The default permission bits of a file when it is created for the first time, is controlled by

chmod value

fmask value

umask value

none of the above

Discuss

Answer: (c).umask value

Q132.

Let x.c be a C source code. The command cc x.c > y

is equivalent to the command cc x.c;mv a.out y

is equivalent to the command cc -o y x.c

serves no purpose

None of the above

Discuss

Answer: (c).serves no purpose

Q133.

A file x is created with the following contents

echo today is:
date

If you type x.then

It echoes the message. followed by date.

It gives the desired output only if the execute permission of file x is set.

The desired output can be got by the command sh x. which works even if x has its execute permission not set.

Both (b) and (c)

Discuss

Answer: (d).Both (b) and (c)

Q134.

Shell script is preferable to other forms of programming because it

Makes programming task easier

Enhances portability

Occupies less space

All of these

Discuss

Answer: (d).All of these

Q135.

Choose the incorrect statement.

Shell scripts can accept arguments

Shell scripts are compiled

Shell is a programming language

Shell scripts are interpreted

Discuss

Answer: (b).Shell scripts are compiled

Q136.

Files that store data in the same format as used in program are called

binary files

Source file

Text file

Core

Discuss

Answer: (a).binary files

Q137.

To allow only one user to work with a particular file at a particular time, one has to use

Semaphore

Critical region

Locking

Dedicated mode

Discuss

Answer: (c).Locking

Q138.

Which of the following remarks about realloc are true?

It allocates memory of required size that need not be contiguous

It may shift the existing block

It can work only with an existing block of memory

Both (b) and (c)

Discuss

Answer: (d).Both (b) and (c)

Q139.

The differences between malloc( ) and calloc() are:

Malloc is used for dynamic allocation of memory, while calloc can't be used for that purpose

Malloc needs only one argument. while cal loc needs two

unlike malloc, calloc allocates memory and initializes it to 0

Both (b) and (c)

Discuss

Answer: (d).Both (b) and (c)

Q140.

The file that stores an integer as a sequence of characters is a

Text file

Data file

Binary file

Core file

Discuss

Answer: (a).Text file

Page 14 of 18

Welcome to the Unix Shell MCQs Page

Unix Shell MCQs | Page 14 of 18

Explore more Topics under UNIX

Introduction to UNIX

Unix File System

Vi Editor

Jobs and Processes

Filters and Regular Expressions

Shell Programming

Basic System Administration

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