Program for print star

echo "Stars"

for (( i=1; i<=5; i++ ))
do
for (( j=1; j<=i; j++ ))
do
echo -n " *"
done
echo ""
done

for (( i=5; i>=1; i-- ))
do
for (( j=1; j<=i; j++ ))
do
echo -n " *"
done
echo ""
done