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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.

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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 3 of 18

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Q21.
A variable can be removed using _____

a.

unset

b.

readonly

c.

del

d.

bash

Discuss
Answer: (a).unset
Q22.
readonly command is used to protect a variable from reassignment.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q23.
C shell uses which command for assigning values to variables?

a.

=

b.

set

c.

unset

d.

$

Discuss
Answer: (b).set
Q24.
The variable assignment as x = 10 (whitespace on both sides of =) will work if we are not using C shell?

a.

True

b.

False

c.

may be

d.

Can't say

Discuss
Answer: (b).False
Q25.
____ command displays all the variables available in the current shell.

a.

env

b.

set

c.

var

d.

sh

Discuss
Answer: (b).set
Q26.
Environment variable names can be defined only in uppercase.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (b).False
Q27.
The shell has ____ prompts.

a.

1

b.

4

c.

5

d.

2

Discuss
Answer: (d).2
Q28.
Which one of the following command will change our primary prompt from $ to C> ?

a.

PS1=”C> “

b.

PS2=”C>”

c.

PS1=”>C”

d.

PS2=”<C”

Discuss
Answer: (a).PS1=”C> “
Q29.
Which environment variable is used to display our username?

a.

PATH

b.

MAIL

c.

LOGNAME

d.

HOME

Discuss
Answer: (c).LOGNAME
Q30.
Which one of the following is not an environment variable?

a.

HOME

b.

PATH

c.

USER

d.

env

Discuss
Answer: (d).env
Page 3 of 18

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