shell中数组匹配的问题

nodeip=(
122.224.73.163
122.224.73.164
122.224.73.165
222.88.57.247
113.140.1.214
)

closeip=(
222.88.57.247
113.140.1.214
)

我要实现的echo nodeip中，不包括closeip的ip，请问怎么实现？
上例中，就是排除
222.88.57.247
113.140.1.214

输出
122.224.73.163
122.224.73.164

代码:

#! /bin/bash

nodeip=(
122.224.73.163
122.224.73.164
122.224.73.165
222.88.57.247
113.140.1.214
)

closeip=(
222.88.57.247
113.140.1.214
)

for ip in ${nodeip[@]}
do
        if echo ${closeip[@]} | grep -Eq "/<$ip/>"
        then
                echo "IP $ip is closed"
        else
                ping ......
        fi
done