#!/bin/bash

arrayA=("A" "B" "C")

arrayB=(  ${arrayA[*]}  )
echo "Case01---${#arrayB[*]}---${arrayB[0]}:${arrayB[1]}:${arrayB[2]}---"

arrayB=( "${arrayA[*]}" )
echo "Case02---${#arrayB[*]}---${arrayB[0]}:${arrayB[1]}:${arrayB[2]}---"

arrayB=(  ${arrayA[@]}  )
echo "Case03---${#arrayB[@]}---${arrayB[0]}:${arrayB[1]}:${arrayB[2]}---"

arrayB=( "${arrayA[@]}" )
echo "Case04---${#arrayB[@]}---${arrayB[0]}:${arrayB[1]}:${arrayB[2]}---"

xx="arrayA[*]"

arrayB=(  ${!xx}  )
echo "Case05---${#arrayB[*]}---${arrayB[0]}:${arrayB[1]}:${arrayB[2]}---"

arrayB=( "${!xx}" )
echo "Case06---${#arrayB[*]}---${arrayB[0]}:${arrayB[1]}:${arrayB[2]}---"

xx="arrayA[@]"

arrayB=(  ${!xx}  )
echo "Case07---${#arrayB[@]}---${arrayB[0]}:${arrayB[1]}:${arrayB[2]}---"

arrayB=( "${!xx}" )
echo "Case08---${#arrayB[@]}---${arrayB[0]}:${arrayB[1]}:${arrayB[2]}---"