Tough Shell Scripting Test - 87+ MCQs: Shell Scripting Quiz: Test Your Command Line Skills with Shell Script Questions and Answers

1. How do you terminate a running process in a shell script?

kill

terminate

end

stop

2. In a shell script, how do you check if a variable is empty?

if [ -n $variable ]; then

if [ -e $variable ]; then

if [ -z $variable ]; then

if [ -f $variable ]; then

3. How do you implement parallel processing in a shell script?

Use 'parallel' command

Run multiple scripts simultaneously

Use background processes

Shell scripting does not support parallel processing

4. How do you navigate to the home directory in a shell script?

home

cd /

cd ~

homedir

5. In a shell script, how do you concatenate two strings?

string1 + string2

string1 . string2

string1 + ' ' + string2

string1 & string2

6. How can you pass command-line arguments to a shell script?

Using the 'input' command

Using environment variables

Using the 'echo' command

Using '$1', '$2', etc.

7. Which command is used to remove a file in a shell script?

remove

delete

del

8. How can you create a timestamp in a shell script?

Use 'date' command

Generate a timestamp using 'echo'

Read from a timestamp file

Use 'timestamp' keyword

9. What is the purpose of the 'basename' command in shell scripting?

Extract directory name

Print current working directory

Extract file extension

Display file size

10. What is the purpose of the 'case' statement in shell scripting?

Conditional statement

Error handling

Loop control

Function definition

11. Which command is used to display the contents of a file in a shell script?

show

display

cat

12. Explain how to handle signals in a shell script for graceful termination.

Use 'kill' command

Ignore signals

Use 'trap' command to handle signals

Terminate immediately on receiving a signal

13. Which command is used to create a new directory in a shell script?

create

mkdir

newdir

14. How can you determine the number of CPU cores available in a shell script?

Use 'cat /proc/cpuinfo'

Count the output of 'ps' command

Use 'nproc' command

Check the contents of '/sys/devices/system/cpu'

15. Explain how to implement a retry mechanism for a command in a shell script.

Use 'retry' keyword

Use 'until' loop

Use 'if-else' statements

Retry mechanisms are not recommended in shell scripting

16. How do you check the version of the shell in a shell script?

version

shell version

sh --version

ver

17. What is the purpose of the 'chmod' command in shell scripting?

Change mode of a file

Create a new file

Copy a file

Check file existence

18. What is the purpose of the 'coproc' command in advanced shell scripting?

Copy files

Create co-processes

Check file permissions

Compile scripts

19. How do you implement dynamic function calls in a shell script?

Use 'eval' command

Create aliases for functions

Concatenate strings to form function names

Dynamic function calls are not supported in shell scripting

20. What does the 'expr' command do in shell scripting?

Evaluate expressions

Display file contents

Check disk space

Execute external command

21. In a shell script, how do you read user input?

read input

input = read

get input

capture input

22. How do you assign the output of a command to a variable in a shell script?

variable = command

variable := command

variable = $(command)

variable := $(command)

23. Explain how to use the 'select' construct for menu-driven scripts in advanced shell scripting.

Create a selection list

Use 'if-else' statements

Define case statements

Select the appropriate option

24. What is the purpose of the 'paste' command in shell scripting?

Merge files horizontally

Copy files

Display file contents

Move files

25. What is the purpose of the 'history' command in a shell script?

View command history

Record audio history

Check file modification history

Review system update history

26. How do you check if a variable is set in a shell script?

if [ -s variable ]

isset variable

check variable

if [ -n variable ]

27. What command is used to display the manual for a command in a shell script?

man

help

info

manual

28. What is the purpose of the 'cut' command in shell scripting?

Remove files

Display file contents

Extract specific columns from a file

Copy files

29. What command is used to find files in a shell script based on various criteria?

locate

find

seek

30. How do you handle concurrency in a shell script?

Use 'sync' command

Avoid concurrency in shell scripts

Implement locks

Use 'concurrent' keyword

Shell Scripting MCQ Test 3