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Welcome to the Filters and Regular Expressions MCQs Page

Dive deep into the fascinating world of Filters and Regular Expressions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Filters and Regular Expressions, a crucial aspect of UNIX. In this section, you will encounter a diverse range of MCQs that cover various aspects of Filters and Regular Expressions, 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 Filters and Regular Expressions. 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 Filters and Regular Expressions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Filters and Regular Expressions MCQs | Page 8 of 18

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Q71.
Which option is used for storing awk programs in a file?

a.

-e

b.

-f

c.

-i

d.

-h

Discuss
Answer: (a).-e
Q72.
____ section can be used if we’ve to print something after processing the last line.

a.

end

b.

begin

c.

start

d.

first

Discuss
Answer: (b).begin
Q73.
awk uses ____ for providing comments.

a.

%%

b.

//

c.

#

d.

$$

Discuss
Answer: (c).#
Q74.
Which of the following is a built-in variable for awk?

a.

ps

b.

$0

c.

FS

d.

FN

Discuss
Answer: (c).FS
Q75.
FS defines the field separator.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q76.
Which built variable is used for defining the field delimiter in the output?

a.

OFS

b.

FS

c.

NF

d.

ES

Discuss
Answer: (a).OFS
Q77.
The ____ variable stores the name of the file currently being processed.

a.

OFS

b.

FILENAME

c.

NF

d.

ES

Discuss
Answer: (b).FILENAME
Q78.
Which of the following is not a built-in variable used by awk?

a.

ES

b.

FILENAME

c.

argv

d.

argc

Discuss
Answer: (a).ES
Q79.
awk supports the use of arrays.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q80.
Which of the following is not true about awk arrays?

a.

they are not expanded automatically

b.

they are initialized to zero or an empty string

c.

index can be a string also

d.

they are not formally defined

Discuss
Answer: (a).they are not expanded automatically
Page 8 of 18

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