Shulou(Shulou.com)06/01 Report--

1. Commands for value operations

Exists (key): confirm whether a key exists

Del (key): delete a key

Type (key): type of return value

Keys (pattern): returns all key keys that satisfy a given pattern *

Randomkey: a key that randomly returns key space

Rename oldname newname: rename key from oldname to ranem age agf

Newname. Delete the key represented by newname if newname exists.

Dbsize: returns the number of key in the current database

Expire: set the active time of a key (s)

Ttl: get the active time of a key

Select (index): switch databases by index query) (0-15 of 16)

Move (key, dbindex): transfers the key in the current database to a dbindex index

Database of

Flushdb: deletes all key in the currently selected database

Flushall: delete all key in all databases

two。 Commands for String operations

Set (key, value): assigns the value value to the string named key in the database

Get (key): returns the value of the string named key in the database

Getset (key, value): give the string named key the old value of the last value display and the new value

Getrange gets a substring of the value value of the specified key.

127.0.0.1 purl 6379 > get name

"sad"

127.0.0.1 getrange name 6379 > 0 1

"sa"

127.0.0.1 purl 6379 > set name HongWan@126.com

Ok

127.0.0.1 purl 6379 > get name

"HongWan@126.com"

127.0.0.1Plus 6379 > getrange name-8-5

"@ 126"

Mget (key1, key2, … , key N): returns multiple string in the library whose names are

Key1,key2... Value of)

127.0.0.1 purl 6379 > mget name age love

1) "xiaoqin"

2) "11"

3) "wu"

Setnx (key, value): if there is no string named key, add it to the library

String, whose name is key and a value of value

127.0.0.1 purl 6379 > setnx qin qu

(integer) 1

127.0.0.1 purl 6379 > get qin

"qu"

Setex (key, time, value): add string (name key, value value) to the library

At the same time, set expiration time time

127.0.0.1 6379 > setex name 100 aiqu

OK

127.0.0.1 6379 > keys *

1) "home"

2) "name"

3) "six"

127.0.0.1 purl 6379 > get name

"aiqu"

Mset (key1, value1, key2, value2, … Key N, value N): give multiple at the same time

String assignment, string assignment value I named key I

127.0.0.1 purl 6379 > mset aa bb cc dd ee ff

OK

127.0.0.1 6379 > keys *

1) "aa"

2) "ee"

3) "cc"

Msetnx (key1, value1, key2, value2, … Key N, value N): if all

If a string with the name key I does not exist, string is added to the library with the name key I

Assigned to value I

Incr (key): string add 1 operation named key

127.0.0.1 purl 6379 > incr age

(integer) 12

127.0.0.1 purl 6379 > get age

Incrby (key, integer): string named key adds integer

127.0.0.1 incrby age 6379 > 1

(integer) 13

127.0.0.1 incrby age 6379 > 1

(integer) 14

127.0.0.1 incrby age 6379 > 1

(integer) 15

Decr (key): string minus 1 operation named key

127.0.0.1 purl 6379 > decr age

(integer) 14

127.0.0.1purl 6379 >

127.0.0.1 purl 6379 > decr age

(integer) 13

Decrby (key, integer): string named key reduces integer

Append (key, value): the value of the string named key is appended to value

127.0.0.1 purl 6379 > get age

"135"

127.0.0.1 6379 > append age 5

(integer) 4

127.0.0.1 purl 6379 > get age

"1355"

Substr (key, start, end): returns the substring of the value of string with the name key

3. Commands for List operations

Rpush (key, value): add an element with the value value to the end of the list named key

127.0.0.1 6379 > rpush hhh 2222 111 333

(integer) 3

127.0.0.1 6379 > keys *

1) "aa"

2) "hhh"

Lpush (key, value): add an element with a value of value to the list header named key

Llen (key): returns the length of the list named key

Lrange (key, start, end): returns the elements between start and end in the list named key (subscript starts with 0, same below)

127.0.0.1 lrange hhh 6379 > 0 0

1) "888"

127.0.0.1 lrange hhh 6379 > 0 1

1) "888"

2) "012"

127.0.0.1 lrange hhh 6379 > 0 2

1) "888"

2) "012"

3) "222"

Ltrim (key, start, end): intercepts the list named key and retains the elements between start and end

Lindex (key, index): returns the element of the index location in the list named key

127.0.0.1 lindex hhh 6379 > 0

"888"

127.0.0.1 lindex hhh 6379 > 1

"012"

127.0.0.1 lindex hhh 6379 >

"222"

Lset (key, index, value): assign value to the element of index position in the list named key

127.0.0.1 lset hhh 6379 > 0999

OK

127.0.0.1 lindex hhh 6379 > 0

"999"

127.0.0.1 lindex hhh 6379 > 1

"012"

Lrem (key, count, value): delete count list with the name key

Elements of value. If count is 0, delete all elements whose value is value, and count > 0 from the

Delete all elements with the value of count value from beginning to end, count lpop hhh

"012"

127.0.0.1 purl 6379 > lpop hhh

"222"

127.0.0.1 purl 6379 > lpop hhh

Rpop (key): returns and deletes the tail element in the list named key

127.0.1 6379 > rpush hhh 2222 111 333 444 555 666 777 888 999

(integer) 9

127.0.0.1 purl 6379 > rpop hhh

"999"

127.0.0.1 purl 6379 > rpop hhh

Blpop (key1, key2, … Key N, timeout): the block version of the lpop command. That is,

When timeout is 0, if a list named key I does not exist or the list is empty, the command

End. If timeout > 0, wait for timeout seconds when you encounter the above situation, if you ask

If the problem is not solved, the pop operation is performed on the list started by key iTunes 1.

Brpop (key1, key2, … Key N, timeout): the block version of rpop. Refer to

An order.

Rpoplpush (srckey, dstkey): returns and deletes the tail element of the list named srckey

Element and add it to the header of the list named dstkey

4. Commands for Set operations

Sadd (key, member): add the element member to the set named key

Srem (key, member): deletes the element member in the set named key

Spop (key): randomly returns and deletes an element in the set named key

Smove (srckey, dstkey, member): move member elements from a collection named srckey to a collection named dstkey

Scard (key): returns the cardinality of the set named key

Sismember (key, member): test whether member is an element of set named key

127.0.0.1 purl 6379 > sismember zz n

(integer) 0

127.0.0.1 purl 6379 > sismember zz b

(integer) 1

127.0.0.1 purl 6379 > sismember zz v

Sinter (key1, key2, … Key N): find the intersection

127.0.0.1 purl 6379 > sadd ss zz xx cc vv bb nn z x c v b n

(integer) 12

127.0.0.1 purl 6379 > sinter zz ss

1) "vv"

2) "x"

3) "cc"

4) "xx"

5) "bb"

6) "v"

7) "b"

8) "c"

Sinterstore (dstkey, key1, key2, … Key N): find the intersection and save the intersection to the collection of dstkey

127.0.0.1 purl 6379 > sinterstore dd zz ss

(integer) 8

127.0.0.1zz ss 6379 > smembers dd (dd is the intersection of zz ss)

1) "b"

2) "v"

3) "vv"

4) "c"

5) "x"

6) "cc"

7) "xx"

8) "bb"

Sunion (key1, key2, … Key N): Union set

127.0.0.1 purl 6379 > sunion zz ss

1) "vv"

2) "x"

3) "z"

4) "xx"

5) "cc"

6) "bb"

7) "n"

8) "zz"

9) "nn"

10) "v"

11) "b"

12) "c"

Sunionstore (dstkey, key1, key2, … Key N): join and save the union

Collection to dstkey

Sdiff (key1, key2, … Key N): difference set

127.0.0.1 purl 6379 > sdiff ss zz

1) "zz"

2) "nn"

3) "n"

4) "z"

Sdiffstore (dstkey, key1, key2, … Key N): compute and save the difference set to

Collection of dstkey

Smembers (key): returns all elements of a set named key

Srandmember (key): randomly returns an element of set with the name key

5. Commands for zset (sorted set) operations

Zadd (key, score, member): add the element member,score to the zset named key for sorting. If the element already exists, the order of the element is updated according to score.

It should be noted here that score must be an integer, not a character.

127.0.0.1 6379 > zadd qq 4 fore

(integer) 1

127.0.0.1 6379 > zadd qq 5 five

(integer) 1

127.0.0.1 6379 > zrange qq 0 2 withscores

1) "five"

2) "4"

3) "fore"

4) "5"

Zrem (key, member): deletes the element member in the zset named key

127.0.0.1 purl 6379 > zrem qq five

(integer) 1

127.0.0.1 6379 > zrange qq 0 2 withscores

1) "fore"

2) "4"

Zincrby (key, increment, member): if in a zset named key

After the existence of the element member, the score of the element increases increment; otherwise to the collection

Add this element in, and its score value is increment

127.0.0.1 6379 > zrange qq 0 2 withscores

1) "fore"

2) "4"

127.0.0.1 6379 > zincrby qq 2 fore

"6"

127.0.0.1 6379 > zrange qq 0 2 withscores

1) "fore"

2) "6"

Zrank (key, member): returns a zset with the name key (the element has been reduced by score

The rank of the member element in the big sort (that is, index, starting with 0), if there is no member

Element, returning "nil"

Zrevrank (key, member): returns a zset with the name key (element has been pressed score

The rank (that is, index, starting with 0) of the member element in the order from largest to smallest, if not

Member element, which returns "nil"

Zrange (key, start, end): returns a zset with the name key (the element has been downloaded from the

All elements of index from start to end in small to large sort

Zrevrange (key, start, end): returns a zset with the name key (the element has been pressed score

All elements of index from start to end in order from largest to smallest

Zrangebyscore (key, min, max): returns the zset with the name key

Score > = min and score = min and rank = min and score hset www qwqw klk

(integer) 1

Hget (key, field): returns the value corresponding to field in the hash named key

127.0.0.1 purl 6379 > hget www qwqw

"klk"

Hmget (key, field1, … , field N): returns the value corresponding to field I in the hash named key

127.0.0.1 purl 6379 > hmset www qqq aaa eee ddd rrr fff ttt ggg yyy hhh

OK

127.0.0.1 purl 6379 > hmget www qwqw qqq eee rrr ttt hhh

1) "klk"

2) "aaa"

3) "ddd"

4) "fff"

5) "ggg"

6) (nil)

Hmset (key, field1, value1, … , field N, value N): add the element field ivalue i to the hash named key

127.0.0.1 purl 6379 > hmset www uuu jjj

OK

127.0.0.1 purl 6379 > hmget www qwqw qqq eee rrr ttt hhh uuu

1) "klk"

2) "aaa"

3) "ddd"

4) "fff"

5) "ggg"

6) (nil)

7) "jjj"

Hincrby (key, field, integer): add integer to the value of field in the hash named key

127.0.0.1 hmset www iii 6379 >

OK

127.0.0.1 hincrby www iii 6379 >

(integer) 333

127.0.0.1 purl 6379 > hget www iii

"333"

Hexists (key, field): whether there is a domain with the key field in the hash named key

127.0.0.1 purl 6379 > hexists www eee

(integer) 1

Hdel (key, field): delete the domain with the key field in the hash named key

127.0.0.1 purl 6379 > hexists www eee

(integer) 1

127.0.0.1 purl 6379 > hdel www eee

(integer) 1

127.0.0.1 purl 6379 > hexists www eee

(integer) 0

Hlen (key): returns the number of elements in a hash named key

127.0.0.1 purl 6379 > hlen www

(integer) 7

Hkeys (key): returns all keys in the hash with the name key

127.0.0.1 purl 6379 > hkeys www

1) "qwqw"

2) "qqq"

3) "rrr"

4) "ttt"

5) "yyy"

6) "uuu"

7) "iii"

Hvals (key): returns the value of all keys in the hash named key

127.0.0.1 purl 6379 > hkeys www

1) "qwqw"

2) "qqq"

3) "rrr"

4) "ttt"

5) "yyy"

6) "uuu"

7) "iii"

127.0.0.1 purl 6379 > hvals www

1) "klk"

2) "aaa"

3) "fff"

4) "ggg"

5) "hhh"

6) "jjj"

7) "333"

Hgetall (key): returns all keys (field) and their corresponding value in the hash named key

127.0.0.1 purl 6379 > hgetall www

1) "qwqw"

2) "klk"

3) "qqq"

4) "aaa"

5) "rrr"

6) "fff"

7) "ttt"

8) "ggg"

9) "yyy"

10) "hhh"

11) "uuu"

12) "jjj"

13) "iii"

14) "333"

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