#!/usr/local/bin/bash
for i in {1..30}
do
   fz=""
   if [ $[$i % 3] == 0 ]; then fz=${fz}fizz; fi
   if [ $[$i % 5] == 0 ]; then fz=${fz}buzz; fi
   if [ "$fz" == "" ]; then fz=$i; fi
   echo $fz
done