计算数组平均值

Posted 2021-01-23 gardonkoo

#!/bin/bash

a[0]=1.2
a[1]=1.3

i=0
for var in ${a[@]}
do
    let i++
    sum=`echo $sum $var | awk ‘{ print $1+$2 } ‘`
done

echo $sum $i | awk ‘ { printf("%.3f", $1/$2) } ‘