Shell Programming 2

#!/bin/bash

name="Alice"

echo "Hello, $name!"

What will be the output of the above script?

• a) Hello, World!

• Hello, Alice!

• Hello, $name!

• Syntax Error

#!/bin/bash

a=10

b=5

sum=$((a + b))

echo "The sum of $a and $b is $sum"

What will be the output of the above script?

• a) The sum of 10 and 5 is 105

• The sum of 10 and 5 is 15

• The sum of 10 and 5 is 10+5

• Syntax Error

#!/bin/bash

number=7

if [ $number -gt 5 ]; then

echo "Number is greater than 5"

else

echo "Number is less than or equal to 5"

fi

• Number is less than or equal to 5

• Number is greater than 5

• Syntax Error

• No output

#!/bin/bash

for i in 1 2 3

do

echo "Iteration $i"

done

• a) Iteration 0, Iteration 1, Iteration 2

• Iteration 1, Iteration 2, Iteration 3

• Iteration 1, Iteration 1, Iteration 1

• No output

#!/bin/bash

current_date=$(date)

echo "Today's date is: $current_date"

What will be the output of the above script?

• Today's date is: <current date and time>

• Today's date is: $(date)

• Today's date is: current_date

• Syntax Error

#!/bin/bash

counter=1

while [ $counter -le 3 ]

do

echo "Counter: $counter"

counter=$((counter + 1))

done

What will be the output of the above script?

• Counter: 1, Counter: 1, Counter: 1

• Counter: 1, Counter: 2, Counter: 3

• Counter: 3, Counter: 2, Counter: 1

• No output

#!/bin/bash

greet() {

echo "Hello, $1!"

}

greet "World"

What will be the output of the above script?

• Hello, Alice!

• Hello, $1!

• Hello, World!

• Syntax Error

#!/bin/bash

echo "This is a test" > output.txt

What will be the output of the above script?

• This is a test

• b) This is a test in the terminal

• c) No output in terminal; "This is a test" written to output.txt

• d) Syntax Error

#!/bin/bash

sleep 5 &

echo "This script is done"

What will be the output of the above script?

• The script will sleep for 5 seconds, then print "This script is done"

• The script will print "This script is done" immediately, and the sleep command runs in the background

• No output

• Syntax Error

#!/bin/bash

day="Monday"

case $day in

"Monday") echo "Start of the workweek";;

"Friday") echo "End of the workweek";;

*) echo "Midweek";;

esac

What will be the output of the above script?

• Midweek

• End of the workweek

• Start of the workweek

• Syntax Error