Shell Program - pattern 3

        *
      **
    ***
  ****
*****


CODE:

#! /bin/bash
echo "enter number of lines:"
read n
for((i=1;i<=n;i++))
do
  for((j=1;j<=n-i;j++))
  do
    echo -ne " "
  done

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

OUTPUT: