[root@slavedb array]# cat a.sh

#!/bin/bash

array=(

freddy

freddie

tang

sheng

wei

)

for ((i=;i<${#array[@]};i++));do

        echo "This is num $i,then content is ${array[$i]}"   #$i是下标

done

echo "-----------------"

echo "array len:${#array[@]}"

#!/bin/bash

a=(aa bb cc dd ee)

for i in `seq  ${#a[*]}`;do

        echo -n ${a[$i]}

done

[root@bogon ~]# arr=(h0 h1 h2 h3)

[root@bogon ~]# for i in ${arr[@]}; do echo $i; done

h0

h1

h2

h3

[root@bogon ~]# arr=(h0 h1 h2 h3)

[root@bogon ~]# for i in ${!arr[@]}; do echo $i; done