Infosys Certified Unix Associate

Which of the following is/are special variables that are not related to arguments passed to a shell script?

case $choice in

        [Y] | [Y][Ee][Ss] )
                echo "Agreed"
                ;;

        [N] | [N][O|o] )
                echo "Not agreed";
                exit 1
                ;;
        *) echo "Invalid input"
            ;;
esac

Which of the following options are incorrect with respect to the above code?

Predict the output

arr=(1 2 3 4 5)
for i in ${arr[*]};do
	if [ `expr $i % 2` -eq 0 ];then
		temp=$( expr $i * $i))
		echo $temp
	else 
		echo ' "$i" '
	fi
done

What will be the output of below code-

var=50

until [ $var -lt 45 ]

do

echo $var

var=`expr $var - 1 `

done

Predict the output

num_arr=(1 2 3 4 5 6 7)
value=1
for i in ${num_arr[*]}
do
    if [ `expr $i % 2 ` -eq 0 ];then
 	value=`expr $value \* $i`
    else
	value=`expr $value \* $i`
    fi
done
echo $value 

Predict the output:

i=5
until [ $i -ge 5 ];do
  echo $i;
  i=`expr $i + 1`
done
echo "Loop Ended"

Predict the output

x=350
sum=0
until [ $x -eq 0 ]
do
	sum=`expr $sum + 1`
	x=`expr $x / 10` 
done
echo $sum

What values need to be passed to the variables val1 and val2 in the below code to get "Newyork" as output?

if [ $val1 = $val2 ]; then
  echo "London"
else
  echo "Newyork"
fi

How many times will the loop get executed?

j=10
until [ $j -ge 13 ];do
  echo $j;
  j=`expr $j + 1`
done 

Betty is working in a Unix system, whose present working directory is /home/Betty/InfyMart/Items/Categories. Under the Categories directory, there are two subdirectories FoodProducts and BeautyProducts. Now she wishes to create an archive from the contents of BeautyProducts directory. Identify the correct command to achieve this

i) ls ./BeautyProducts | cpio -ov > archive_file

ii) ls -l BeautyProducts | cpio -ov -H tar -F archive_file

iii) ls BeautyProducts | cpio -ov -H tar -F archive_file

iv) ls ../Categories/BeautyProducts | cpio -ov > archive_file