**AIM:**

To write a shell program for finding greatest among three numbers.

**ALGORITHM:**

• Get the three numbers to find the biggest number.

• Check if A is greater than B and C.

• if true print A as greater number if not b > c.

• if B > C print B is greater or C is greater.

• Terminate the program.

**PROGRAM SOURCE CODE**

echo ”enter 3 numbers”

read a

read b

read c

if [$a –eq $b –a $a –eq $c]

then

echo “3 number are equal”

elif [$a –gt $b –a $a –gt $c]

then

echo ”$a is the greatest number”

elif [$b –gt $c]

then

echo “$b is the greatest number”

else

echo “$c is the greatest number”

fi

**CONCLUSION:**

Thus the shell program to find the greatest among three values is written and executed successfully.

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