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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 2 of 18

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Q11.
To extract specific columns from a file, ____ command is used.

a.

tail

b.

head

c.

pr

d.

cut

Discuss
Answer: (d).cut
Q12.
The expression cut -c -3 emp.lst will cut columns number _____

a.

3

b.

1

c.

1-3

d.

0

Discuss
Answer: (c).1-3
Q13.
____ option is used with the cut command for cutting fields.

a.

-c

b.

-n

c.

-f

d.

-a

Discuss
Answer: (c).-f
Q14.
What is the default delimiter used by the cut command for cutting fields?

a.

space

b.

tab

c.

double tab

d.

underscore

Discuss
Answer: (b).tab
Q15.
Which option is used with the cut command for cutting field base on the value of our specified delimiter?

a.

-a

b.

-f

c.

-d

d.

-e

Discuss
Answer: (c).-d
Q16.
We have to specify whether we want to cut fields or columns while using cut command.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q17.
The following command will produce an error.

$ cut -d “|” -f 1,4 emp.lst

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (b).False
Q18.
Which one of the following commands is incorrect?

a.

$ cut -d “|” -f 1,4 emp.lst

b.

$ cut -c -3 emp.lst

c.

$ tail -c -511 foo

d.

$ tail -c 500 foo

Discuss
Answer: (d).$ tail -c 500 foo
Q19.
Which command is used for pasting files?

a.

cut

b.

paste

c.

tail

d.

head

Discuss
Answer: (b).paste
Q20.
Whatever we have cut using cut command can be pasted back using paste command but vertically.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Page 2 of 18

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