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Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 10. Check strong number.

PROGRAM:

echo "Enter the number:"

read n

fact=1

if [ $n -eq 0 ]

then

    echo "fact = "1

else

   

        for i in `seq 1 $n`

        do

            fact=`expr $fact \* $i`

        done

        echo "fact = $fact"

fi

OUTPUT:

[bgc@localhost ~]$ sh 11.sh

Enter a number:

145

145 is a strong number

[bgc@localhost ~]$ sh 11.sh

Enter a number:

2

2 is a strong number

[bgc@localhost ~]$ sh 11.sh

Enter a number:

23

23 is not a strong number

[bgc@localhost ~]$

Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 9. Check if a number is prime fibonacci.

PROGRAM:

echo "enter the ending range of the series:"

read n

a=0

b=1

d=0

echo "The series is:"

if [ $n -le 2 ]

then

    echo "null"

else

    while [ $d -le $n ]

    do

        d=`expr $a + $b`

        c=0

        e=1

        while [ $e -le $d ]

        do

            if [ `expr $d \% $e` -eq 0 ]

            then

                c=`expr $c + 1`

            fi

            e=`expr $e + 1`

        done

        if [ $c -eq 2 ]

        then

            if [ $d -le $n ]

            then

                echo $d

            fi

        fi

        a=$b

        b=$d

    done

fi

OUTPUT:

[bgc@localhost ~]$ sh 10.sh

enter the ending range of the series:

100

The series is:

2

3

5

13

89

[bgc@localhost ~]$

Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 8.Print twin prime numbers within a range.

PROGRAM:

echo "enter a range:"

read a

read b

n=$a

while [ $n -le $b ]

do

    c=0

    d=1

    while [ $d -le $n ]

    do

        if [ `expr $n \% $d` -eq 0 ]

        then

            c=`expr $c + 1`

        fi

        d=`expr $d + 1`

    done

    if [ $c -eq 2 ]

    then

        f=$n

        e=`expr $n + 2`

        m=$e

        c=0

        d=1

        while [ $d -le $m ]

        do

            if [ `expr $m \% $d` -eq 0 ]

            then

                c=`expr $c + 1`

            fi

            d=`expr $d + 1`

        done

        if [ $c -eq 2 ]

        then

            echo "twin prime pair=$f,$e"

        fi

       

    fi

n=`expr $n + 1`

done

OUTPUT:

enter a range:

2

10

twin prime pair=3,5

twin prime pair=5,7

[bgc@localhost ~]$ sh 9.sh

enter a range:

3

100

twin prime pair=3,5

twin prime pair=5,7

twin prime pair=11,13

twin prime pair=17,19

twin prime pair=29,31

twin prime pair=41,43

twin prime pair=59,61

twin prime pair=71,73

[bgc@localhost ~]$

Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 7. Prime number checking.

PROGRAM:

echo "enter a number:"

read n

    c=0

    d=1

    while [ $d -le $n ]

    do

        if [ `expr $n \% $d` -eq 0 ]

        then

            c=`expr $c + 1`

        fi

        d=`expr $d + 1`

    done

if [ $c -eq 2 ]

then

    echo "prime number"

else

    echo "not a prime number"   

fi

OUTPUT:

[bgc@localhost ~]$ sh 8.sh

enter a number:

2

prime number

[bgc@localhost ~]$ sh 8.sh

enter a number:

1

not a prime number

[bgc@localhost ~]$ sh 8.sh

enter a number:

0

not a prime number

[bgc@localhost ~]$ sh 8.sh

enter a number:

5

prime number

[bgc@localhost ~]$ sh 8.sh

enter a number:

4

not a prime number

[bgc@localhost ~]$

Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 6. Print fibonacci series.

PROGRAM:

echo "enter number of elements of the fibonacci series:"

read n

a=0

b=1

if [ $n -eq 0 ]

then

    echo "no elemnts"

else

    if [ $n -eq 1 ]

    then

        echo 0

    else

        echo 0

        echo 1

        c=2

        while [ $c -ne $n ]

        do

            d=`expr $a + $b`

            echo $d   

            a=$b

            b=$d

            c=`expr $c + 1`

        done

    fi

fi

OUTPUT:

[bgc@localhost ~]$ sh 7.sh

enter number of elements of the fibonacci series:

6

0

1

1

2

3

5

[bgc@localhost ~]$

Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 5. Find out the factorial of a number.

PROGRAM:

echo "Enter the number:"

read n

fact=1

if [ $n -eq 0 ]

then

    echo "fact = "1

else

   

        for i in `seq 1 $n`

        do

            fact=`expr $fact \* $i`

        done

        echo "fact = $fact"

fi

OUTPUT:

[bgc@localhost ~]$ sh 6.sh

Enter the number:

3

fact = 6

[bgc@localhost ~]$ sh 6.sh

Enter the number:

2

fact = 2

[bgc@localhost ~]$ sh 6.sh

Enter the number:

0

fact = 1

[bgc@localhost ~]$

Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 4.Check a number whether it is odd positive,odd negative,even positive,even negative.

PROGRAM:

echo "enter a number:"

read n

if [ $n -ge 0 ]

then

    if [ `expr $n % 2` -eq 0 ]

    then

        echo "$n is a even positive number"

    else

        echo "$n is a odd positive number"

    fi

else

    if [ `expr $n % 2` -eq 0 ]

    then

        echo "$n is a even negative number"

    else

        echo "$n is a odd negative number"

    fi

fi

OUTPUT:

[bgc@localhost ~]$ sh 5.sh

enter a number:

3

3 is a odd positive number

[bgc@localhost ~]$ sh 5.sh

enter a number:

0

0 is a even positive number

[bgc@localhost ~]$ -9

bash: -9: command not found...

[bgc@localhost ~]$ sh 5.sh

enter a number:

-9

-9 is a odd negative number

[bgc@localhost ~]$ sh 5.sh

enter a number:

-10

-10 is a even negative number

[bgc@localhost ~]$

Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 3. Leap year checking.

PROGRAM:

echo "enter the year:"

read n

if [ `expr $n % 4` -eq 0 ]

then

    if [ `expr $n % 100` -eq 0 ]

    then

        if [ `expr $n % 400` -eq 0 ]

        then

            echo "$n is a leapyear"   #2000

        else

            echo "$n is not a leapyear"  #1900

        fi

    else

        echo "$n is a leapyear"  #1996

    fi

else

    echo "$n is not a leapyear"  #1997

fi

OUTPUT:

[bgc@localhost ~]$ sh pc2.sh

enter the year:

1996

1996 is a leapyear

[bgc@localhost ~]$ sh pc2.sh

enter the year:

2000

2000 is a leapyear

[bgc@localhost ~]$ sh pc2.sh

enter the year:

1997

1997 is not a leapyear

[bgc@localhost ~]$ sh pc2.sh

enter the year:

1900

1900 is not a leapyear

[bgc@localhost ~]$

Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 2. Use of for loop.

PROGRAM:

echo "Enter number of elements:"

read n

for i in `seq 1 $n`

do

    echo $i

done

OUTPUT:

[bgc@localhost ~]$ sh pc.sh

Enter number of elements:

3

1

2

3

[bgc@localhost ~]$ 

Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 1. Use of while loop.

PROGRAM:

echo "enter no. of elements:"

read n

a=0

while [ $a -ne $n ]

do

    echo $a

    ((a++))

done

OUTPUT:

[bgc@localhost ~]$ sh pc1.sh

enter no. of elements:

3

0

1

2

[bgc@localhost ~]$

Cloud computing QUESTION SET 1

 

1. Defining Cloud Computing.

2. Cloud Computing Is a Service.

3. 5-4-3 Principles of Cloud computing.

4. Give a brief note on the merits and demerits of cloud computing.

5. Cloud Architecture.

6. What is public cloud access networking?

7. Compare and contrast public and private clouds.

8. What is SLA? Are SLAs different for each type of cloud deployment?

9.  What are the characteristics of hybrid cloud?

10. What are the advantages of using the community cloud?

11. Define Infrastructure as a Service (IaaS).

12. Define Platform as a Service (PaaS).

13. Define Software as a Service (SaaS).

14. Write short notes on end user and service provider responsibilities of cloud service models with a suitable diagram.

15. Explain in detail about the overview of IaaS, PaaS, and SaaS with suitable diagrams.

16. Write short notes on pros and cons of IaaS, PaaS, and SaaS.