move redis data using dump

move-redis.sh

#!/bin/bash

#redis 源ip
src_ip=xxx.cache.amazonaws.com.cn
#redis 源port
src_port=6379
src_db=0

#redis 目的ip
dest_ip=xxx.cache.amazonaws.com.cn
#redis 目的port
dest_port=6379
dest_db=5

#要迁移的key前缀
key_prefix=xxx

i=1

redis-cli -h $src_ip -p $src_port -n $src_db keys "${key_prefix}*" | while read key
do
    redis-cli -h $dest_ip -p $dest_port -n $dest_db del $key
    redis-cli -h $src_ip -p $src_port --raw dump $key | perl -pe 'chomp if eof' | redis-cli -h $dest_ip -p $dest_port -n $dest_db -x restore $key 0
    echo "$i migrate key $key"
    i=$(($i + 1))
done