Write shell script to find out biggest number from given three numbers.

Write shell script to find out biggest number from given three numbers. 

echo "enter first number"

read first

echo "enter second number"

read sec

echo "enter third number"

read third

if [ $first -gt $sec ] ; then

if [ $first -gt $third ] ; then

echo -e " $first is greatest number "

else

echo -e " $third is greatest number "

fi

else

if [ $sec -gt $third ] ; then

echo -e " $sec is greatest number "

else

echo -e " $third is greatest number "

fi

fi

Output
# bash bignum.sh
enter first number
23
enter second number
34
enter third number
12
34 is greatest number