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Welcome to the Shell Programming MCQs Page

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

Shell Programming MCQs | Page 15 of 16

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Q141.
The shell command :

a.

Does nothing

b.

Can be used to cause infinite looping

c.

Can take arguments but it cannot act on them

d.

All of these

Discuss
Answer: (d).All of these
Q142.
Which of the following tools can be used to keep track of evolving versions of a file

a.

make

b.

yacc

c.

sccs

d.

dv

Discuss
Answer: (c).sccs
Q143.
lint can analyze the named source code for

a.

inconsistent usage

b.

non portability

c.

suspicious constructs

d.

All of these

Discuss
Answer: (d).All of these
Q144.
Which of the following remarks about lex are true?

a.

It generates a C program

b.

It produces a C code that consumes more memory than a C program that can be written separately to accomplish the same task

c.

It produces a C' code that executes slower than a C program that can be written separately to accomplish the same task

d.

All of these

Discuss
Answer: (d).All of these
Q145.
Which of the following programs are not interactive?

a.

passwd

b.

date

c.

grep

d.

Both (b) & (c)

Discuss
Answer: (d).Both (b) & (c)
Q146.
lex can be used for

a.

Text processing

b.

Code enciphering

c.

Compiler construction

d.

All of these

Discuss
Answer: (d).All of these
Q147.
The number of errors in the following shell script:

echo How are you?
read $answer

is

a.

0

b.

1

c.

2

d.

3

Discuss
Answer: (c).2
Q148.
The read in the previous question is a

a.

Library function

b.

System call

c.

Shell command

d.

None of the above

Discuss
Answer: (c).Shell command
Q149.
If lex .1 is a lex code then

a.

The command lex lex .1 invokes lex to act on lex .1

b.

The command lex lex.1 writes its output to the file lex.yy.c

c.

lex.yy.c has the definition of the function yylex

d.

All of these

Discuss
Answer: (d).All of these
Q150.
The following program:

main()
{
close(1);
print("How R U?");
}

a.

is syntactically incorrect

b.

results in a run-time error

c.

will wait indefinitely, if executed

d.

none of the above

Discuss
Answer: (d).none of the above
Page 15 of 16

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