maximum two number and three number

 

EX.NO:3.d                    MAXIMUM OF TWONUMBERS

 

Aim:

To write a shell program to find greatest of two numbers.

 

Algorithm:

 

Step1: Declare the two variables.

Step2: Check if A is greater than B.

Step3: If so print A is greater.

Step4: Else B is greater 

.

Programcode:

clear

echo " enter two no"

Read a

read b

if [ $a -gt $b ]

then

echo "$a is greater"

else

echo "$b is greater"

fi

 

Sample I/P:

Enter two no

5

 6

 

Sample O/P:

 

b is greater                             

Result:

Thus the shell program to find the maximum of three numbers is executed and output is verified successfully.

 

VIVA-VOCE QUESTIONS:

 

1. What is read command?

2. Write syntax of if function.

3. What is the use of clear command?

4.What is "-gt" in shell script?

 

 

 

EX.NO:3.eMAXIMUM OF THREENUMBERS

 

Aim:

To write a shell program to find greatest of threenumbers.

 

Algorithm:

Step1: Declare the three variables.

Step2: Check if A is greater than B andC.

 Step3: If so print Aisgreater.

Step4: Else check if B is greater thanC.

Step5: If so print B isgreater.

Step6: Else print C isgreater.

 

Programcode:

echo " Enter A:"

reada

echo " Enter B:"

readb

echo " Enter C:"

readc

if [ $a -gt $b -a $a -gt $c ]

then

echo "A is greater"

elif [ $b -gt $a -a $b -gt $c ]

then

echo "B is greater"

else

echo "C is greater"

fi

Sample I/P:

Enter A:23 Enter B:45 Enter C:67

Sample O/P:

C is greater

Result:

Thus the shell program to find the maximum of three numbers is executed and output is verified successfully.

 

VIVA-VOCE QUESTIONS:

 

1. What is read command?

2. Write syntax of if function.

3. What is the use of clear command?

4. What is  “-gt” in shell script?

5.What is  “-a” in shell script

 

 

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