Shell Script for Swapping two numbers

Write a Shell Script to Swap the two number

Solution:

echo Enter the two numbers 

read a b

if test $a -gt $b

then

a=`expr $a - $b`

b=`expr $a + $b`

a=`expr $b - $a`

else

b=`expr $b - $a`

a=`expr $a + $b`

b=`expr $a - $b`

fi

echo Swapped Value: $a and $b

Execution: