#!/bin/shfunction fib_ary(){a1=(0 1)for t in `seq 1 6`dom=a1[$((${#a1[*]}-1))]n=a1[$((${#a1[*]}-2))]a1[${#a1[*]}]=$[m+n]donefor i in ${a1[*]}doecho $idoneecho ${a1[*]}}fib_ary