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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 5 of 18

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Q41.
If there are special characters in a pattern, then we’ve to enclose them in ______

a.

single quotes

b.

double quotes

c.

without any quotes

d.

all quotes

Discuss
Answer: (b).double quotes
Q42.
Which option is used with grep command for ignoring the case in pattern searching?

a.

-a

b.

-v

c.

-i

d.

-e

Discuss
Answer: (c).-i
Q43.
Which option is used with grep command for deleting lines?

a.

-v

b.

-e

c.

-a

d.

-i

Discuss
Answer: (a).-v
Q44.
Which option is used for displaying the line numbers containing the pattern along with lines?

a.

-v

b.

-i

c.

-e

d.

-n

Discuss
Answer: (d).-n
Q45.
______ option counts the number of lines containing the pattern?

a.

-c

b.

-i

c.

-e

d.

-n

Discuss
Answer: (a).-c
Q46.
Which option displays only the filename containing the pattern?

a.

-i

b.

-n

c.

-e

d.

-l

Discuss
Answer: (d).-l
Q47.
_____ option is used when we need to match multiple patterns in a single invocation of grep command?

a.

-a

b.

-e

c.

-n

d.

-i

Discuss
Answer: (b).-e
Q48.
For taking patterns from a file, -f option is specified with grep command.

a.

True

b.

False

c.

may be

d.

Can't say

Discuss
Answer: (a).True
Q49.
POSIX identifies regular expressions as belonging to ____ categories.

a.

3

b.

2

c.

4

d.

5

Discuss
Answer: (b).2
Q50.
grep command supports both extended and regular expressions.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Page 5 of 18

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