# Redis
###### tags: `tools`
[TOC]
### install redis

yum install epel-release

yum install -y  redis

### redis-cli

redis-cli -h 47.74.70.148 -p 6379
redis-cli -h localhost -p 6379

* display db

 info
 config get databases

* select db

 select 11

* display whole key

 keys * 

* get key value

get 'key'

* set key value

get 'key' 'value'

### display hole key

echo "KEYS Shared-AU:DATA_SOURCE:*" | redis-cli -h 47.74.70.148 -p 6379 -n 11 | less

### disply whole value script

str=$(echo "KEYS *" | redis-cli -h localhost -p 6379 -n 11)

if [ -f values.txt ]; then
    rm values.txt
fi

for key in $str; do
    if [[ "$key" =~ "DATA_SOURCE" ]]; then
        echo "key.........$key" | tee -a values.txt
        echo "GET $key" | redis-cli -h 47.74.70.148 -p 6379 -n 11 | tee -a values.txt
        echo "\n" | tee -a values.txt
    fi
done

# implement function

public boolean setLock(String cacheKey, String value, long expire) {
    return redisClient.lock(getCacheKey(cacheKey), value, (int) expire);
}

# LUA delete all key

EVAL "local real_keys = redis.call('KEYS', KEYS[1]) local key_count = table.getn(real_keys) if key_count > 0 then redis.call('DEL', unpack(real_keys)) end" 1 "gaia-membership:v3:device:single:55a12ddf-5155-40d1-b38d-027a21ab5f5c_c1bda71b-879a-46a6-b3a5-d6f7abc28ff2*"