redis key操作

root@tts-0001:~# redis-cli 

redis 127.0.0.1:6379> keys *

(empty list or set)

redis 127.0.0.1:6379> set cache ehcache

OK

redis 127.0.0.1:6379> keys *

1) "cache"

redis 127.0.0.1:6379> set file sysfile

OK

redis 127.0.0.1:6379> keys *

1) "file"

2) "cache"

redis 127.0.0.1:6379> randomkey

"file"

redis 127.0.0.1:6379> randomkey

"cache"

redis 127.0.0.1:6379> ttl cache

(integer) -1

redis 127.0.0.1:6379> ttl caches

(integer) -1

redis 127.0.0.1:6379> exists cache

(integer) 1

redis 127.0.0.1:6379> exists caches

(integer) 0

redis 127.0.0.1:6379> rename cache caches

OK

redis 127.0.0.1:6379> keys *

1) "caches"

2) "file"

redis 127.0.0.1:6379> rename caches caches

(error) ERR source and destination objects are the same

redis 127.0.0.1:6379> rename cache caches

(error) ERR no such key

redis 127.0.0.1:6379> type cache

none

redis 127.0.0.1:6379> type caches

string

redis 127.0.0.1:6379> select 1

OK

redis 127.0.0.1:6379[1]> keys *

(empty list or set)

redis 127.0.0.1:6379[1]> select 0

OK

redis 127.0.0.1:6379> move caches 1

(integer) 1

redis 127.0.0.1:6379> move caches 1

(integer) 0

redis 127.0.0.1:6379> select 1

OK

redis 127.0.0.1:6379[1]> keys *

1) "caches"

redis 127.0.0.1:6379[1]> quit