shell 实现批量操作redis

shell 匹配删除指定前缀的key

#! /bin/bash

rediscom="/redis/src/redis-cli -a auth -h redis.host -n 0";


`$rediscom keys LM*`|xargs `$rediscom del `

shell 匹配修改key的有效期

#! /bin/bash

rediscom="";

scannum=0;
endnum=1;

expire=86400;
while [ $scannum -ne $endnum ]
do
    endnum=1;
    arr=(`$rediscom scan $scannum` );
    scannum=${arr[0]};
    
    for  key in ${arr[@]:1} 
    do
        echo `${rediscom} expire ${key} $expire`;
    done;

done;

redis 的逐出策略收到maxmemory的限制，超过这个数有一些key就会被逐出内存释放空间