Redis指令手册中文版——–powered by shjuto@gmail.com
连接控制
QUIT :退出,关闭连接
代码实例：连接 退出
telnet localhost 6379
QUIT
举例说明
1、首先需要在redis的配置文件redis.conf中requirepass注释掉的内容，设置需要密码连接，否则auth任何密码都通过
2、重新启动redis
3、验证 auth testpassword,testpassword是我在配置文件中设置的requirepass testpassword
4、redis 服务器的速度众所周知，因此官方文件中 提醒设置比较复杂的密码,防止机器破解
telnet localhost 6379
Escape character is '^]'.
auth dsddsd
-ERR invalid password
keys global*
-ERR operation not premitted
auth ddddd
-ERR invalid password
auth testpassword
+OK
管理数据操作
EXISTS :判断一个键是否存在;存在返回 1;否则返回0;
举例：
EXISTS burce
:0
SET bruce 10
paitoubing
+OK
SET test 5
paitoubing
+OK
-ERR unknown command 'ing'
EXISTS bruce
:1
上面的程序
EXISTS bruce是否存在，结果是不存在，然后set一个key为bruce 数据长度为10的数据，如果数据长度操作设置的值，多余的字节会当作redis命令来处理
DEL :删除某个key,或是一系列key;DEL key1 key2 key3 key4
TYPE: 返回某个key元素的数据类型 ( none:不存在,string:字符,list,set,zset,hash)
KEYS: 返回匹配的key列表 (KEYS foo*:查找foo开头的keys)
RANDOMKEY: 随机获得已经存在的key
RENAME : 更改key的名字，如果名字存在则更改失败
DBSIZE: 返回当前数据库的key的总数
EXPIRE: 设置某个key的过期时间（秒）,(EXPIRE bruce 1000：设置bruce这个key1000秒后系统自动删除)
TTL: 查找某个key还有多长时间过期,返回时间秒
SELECT: 选择数据库
MOVE: 把key从一个数据库转移到另外一个库
FLUSHDB: 清空当前数据库数据
FLUSHALL:清空所有数据库数据
字符串类型的数据操作
SET 存一个数据到数据库 SET keyname datalength data (SET bruce 10 paitoubing:保存key为burce,字符串长度为10的一个字符串paitoubing到数据库)
GET:获取某个key 的value值
GETSET GETSET可以理解成获得的key的值然后SET这个值，更加方便的操作 (SET bruce 10 paitoubing,这个时候需要修改bruce变成1234567890并获取这个以前的数据paitoubing,GETSET bruce 10 1234567890)
MGET 一次性获得多个key的数据 (MGET uid:1:name uid:1:email uid:1:ciy)
SETNX SETNX与SET的区别是SET可以创建与更新key的value，而SETNX是如果key不存在，则创建key与value数据
SETEX SETEX = SET + EXPIRE,貌似我的这个版本没有办法测试
MSET 一次性设置多个参数的值(MSET uid:1:name shjuto uid:1:email shjuto@gmail.com uid:1:city 8 回车 nanchang)最后一个值需要回车输入，和SET一样，不知为啥。
MSETNX 如果设置的key不存在的话,或是叫做新key的话；一次性设置多个参数的值(MSET uid:1:name shjuto uid:1:email shjuto@gmail.com uid:1:city 8 回车 nanchang)最后一个值需要回车输入，和SET一样，不知为啥。
INCR 自增，有点类是mysql incr.(INCR global:uid)
INCRBY 自增 +length ,(INCRBY uid 5)原来的基础+5=result
DECR 自减
* DECRBY 自减 -lenght
APPEND 一个例子足以说明
redis> exists mykey
(integer) 0
redis> append mykey "Hello "
(integer) 6
redis> append mykey "World"
(integer) 11
redis> get mykey
"Hello World"
SUBSTR 一个例子足以说明一切,LIKE PHP ‘S STYLE
redis> set s "This is a string"
OK
redis> substr s 0 3
"This"
redis> substr s -3 -1
"ing"
redis> substr s 0 -1
"This is a string"
redis> substr s 9 100000
" string"
LISTS （无索引序列,head位置是0,……）
# RPUSH 追加数据到系列的尾部 (RPUSH listtest 10 \n 1111111122)
# LPUSH 追加数据到序列的头部 (LPUSH listtest 10 \n 2222222222)
# LLEN 一个序列的长度；（LLEN listtest）
# LRANGE 从自定的范围内返回序列的元素 (LRANGE testlist 0 2;返回序列testlist前0 1 2元素)
# LTRIM 修剪某个范围之外的数据 (LTRIM testlist 0 2;保留0 1 2元素，其余的删除)
# LINDEX 返回某个位置的序列值(LINDEX testlist 0;返回序列testlist位置为零的元素)
# LSET 更新某个位置元素的值 (LSET testlist 0 5 \n 55555;)
# LPOP key Return and remove (atomically) the first element of the List at key
# RPOP key Return and remove (atomically) the last element of the List at key
# LREM 根据值删除序列元素 (LREM testlist 0 5 \n 33333;删除序列中所有的等于33333的元素,为何不是REMOVE BY KEY?不知道何故，可能对删除重复数据有用吧)
# BLPOP key1 key2 … keyN timeout Blocking LPOP >1.31，后续更新
# BRPOP key1 key2 … keyN timeout Blocking RPOP >1.31
# RPOPLPUSH srckey dstkey Return and remove (atomically) the last element of the source List stored at _srckey_ and push the same element to the destination List stored at _dstkey_
SETS （有索引无序序列）
# SADD 增加元素到SETS序列,如果元素不存在则添加成功 1，否则失败 0;(SADD testlist 3 \n one)
# SREM 删除SETS序列的某个元素，如果元素不存则失败0，否则成功 1(SREM testlist 3 \N one)
# SPOP 随机删除某个元素 （SPOP testlist）
# SMOVE 把一个SETS序列的某个元素 移动到 另外一个SETS序列 (SMOVE testlist test 3\n two;从序列testlist移动元素two到 test中，—testlist中将不存在two元素)
# SCARD 统计某个SETS的序列的元素数量 (SCARD testlist)
# SISMEMBER 产看某个数据是否在序列中,(SISMEMBER testlist 3 \n two)
# SINTER 几个SETS序列的交集 SINTER key1 key2 … keyN (SINTER test testlist),牛B呀
# SINTERSTORE 把计算出来的交集 记录到一个新的序列 SINTERSTORE dstkey key1 key2 … keyN (SINTERSTORE resultlist testlist test;把testlist test的交集记录到resultlist)
# SUNION 几个SETS序列的并集 SUNION key1 key2 … keyN (SUNION test testlist)
# SUNIONSTORE 把计算出来的并集 记录到一个新的序列 SUNIONSTORE dstkey key1 key2 … keyN (SUNIONSTORE resultlist testlist test;把testlist test的交集记录到resultlist)
# SDIFF key1 key2 … keyN,求出某几个序列的并集 与 某个序列 求出差集 ，请看官方例子：
key1 = x,a,b,c
key2 = c
key3 = a,d
SDIFF key1,key2,key3 => x,b
# SDIFFSTORE dstkey key1 key2 … keyN ,和前面的SINTERSTORE SUNIONSTORE差不多，对比
# SMEMBERS KEY 返回某个序列的所有元素
# SRANDMEMBER KEY 随机返回某个序列的元素
- ZADD key score member Add the specified member to the Sorted Set value at key or update the score if it already exist
- ZREM key member Remove the specified member from the Sorted Set value at key
- ZINCRBY key increment member If the member already exists increment its score by _increment_, otherwise add the member setting _increment_ as score
- ZRANK key member Return the rank (or index) or _member_ in the sorted set at _key_, with scores being ordered from low to high
- ZREVRANK key member Return the rank (or index) or _member_ in the sorted set at _key_, with scores being ordered from high to low
- ZRANGE key start end Return a range of elements from the sorted set at key
- ZREVRANGE key start end Return a range of elements from the sorted set at key, exactly like ZRANGE, but the sorted set is ordered in traversed in reverse order, from the greatest to the smallest score
- ZRANGEBYSCORE key min max Return all the elements with score >= min and score <= max (a range query) from the sorted set
- ZCARD key Return the cardinality (number of elements) of the sorted set at key
- ZSCORE key element Return the score associated with the specified element of the sorted set at key
- ZREMRANGEBYRANK key min max Remove all the elements with rank >= min and rank <= max from the sorted set
- ZREMRANGEBYSCORE key min max Remove all the elements with score >= min and score <= max from the sorted set
- ZUNIONSTORE / ZINTERSTORE dstkey N key1 … keyN WEIGHTS w1 … wN AGGREGATE SUM|MIN|MAX Perform a union or intersection over a number of sorted sets with optional weight and aggregate
- HSET key field value Set the hash field to the specified value. Creates the hash if needed.
- HGET key field Retrieve the value of the specified hash field.
- HMSET key field1 value1 … fieldN valueN Set the hash fields to their respective values.
- HINCRBY key field integer Increment the integer value of the hash at _key_ on _field_ with _integer_.
- HEXISTS key field Test for existence of a specified field in a hash
- HDEL key field Remove the specified field from a hash
- HLEN key Return the number of items in a hash.
- HKEYS key Return all the fields in a hash.
- HVALS key Return all the values in a hash.
- HGETALL key Return all the fields and associated values in a hash.
- SORT key BY pattern LIMIT start end GET pattern ASC|DESC ALPHA Sort a Set or a List accordingly to the specified parameters
- SAVE Synchronously save the DB on disk
- BGSAVE Asynchronously save the DB on disk
- LASTSAVE Return the UNIX time stamp of the last successfully saving of the dataset on disk
- SHUTDOWN Synchronously save the DB on disk, then shutdown the server
- BGREWRITEAOF Rewrite the append only file in background when it gets too big
- INFO Provide information and statistics about the server
- MONITOR Dump all the received requests in real time
- SLAVEOF Change the replication settings
- CONFIG Configure a Redis server at runtime
update:2010-05-21,my redis version 1.26
