Someone

clear
echo Enter the number m
read m
echo Enter the number n
read n
echo Prime numbers are as follow :
while [ $m -lt $n ]
do
	i=2
	while [ $i -le `expr $m / 2` ]
	do
		if [ `expr $m % $i` -ne 0 ]
		then
			flag=0
		else
			flag=1
			break
		fi
		i=`expr $i + 1`
	done
	if [ $flag -eq 0 ]
	then
		echo $m is a prime number
	fi
	m=`expr $m + 1`
done