#!bin/sh

echo "Enter three numbers"
read x
read y
read z
if [ $x -ge $y ] && [ $x -ge $z ]
then
echo "$x is greatest number"
elif [ $y -ge $x ] && [ $y -ge $z ]
then
echo "$y is greatest number"
else
echo "$z is greatest number"
fi

if [ $x -le $y ] && [ $x -le $z ]
then
echo "$x is least number"
elif [ $y -le $z ] && [ $y -le $x ]
then
echo "$y is least number"
else
echo "$z is least number"
fi