Redis Basics

Redis command

String type

192.168.86.128:6379> keys *
(empty array)
192.168.86.128:6379> keys a*
(empty array)
192.168.86.128:6379> del name
(integer) 0
192.168.86.128:6379> mset k1 v1 k2 v2 k3 v3
OK
192.168.86.128:6379> keys *
1)“k3”
2)“k1”
3)“k2”
192.168.86.128:6379> del k1 k2 k3
(integer) 3
192.168.86.128:6379> keys *
(empty array)
192.168.86.128:6379> exists k1
(integer) 0
192.168.86.128:6379> expire age 20
(integer) 0
192.168.86.128:6379> set age 23
OK
192.168.86.128:6379> get age
“23”
192.168.86.128:6379> expire age 20
(integer) 1
192.168.86.128:6379> keys *
1)“age”
192.168.86.128:6379> ttl age
(integer) -2
192.168.86.128:6379> keys *
(empty array)
192.168.86.128:6379> set name rose
OK
192.168.86.128:6379> set name jack
OK
192.168.86.128:6379> get name
“jack”
192.168.86.128:6379> mset k1 v1 k2 v2 k3 v3
OK
192.168.86.128:6379> mget k1 k2 k3 name
1)“v1”
2)“v2”
3)“v3”
4)“jack”
192.168.86.128:6379> set age 18
OK
192.168.86.128:6379> get age
“18”
192.168.86.128:6379> incr age
(integer) 19
192.168.86.128:6379> get age
“19”
192.168.86.128:6379> incrby age 3
(integer) 22
192.168.86.128:6379> get age
“22”
192.168.86.128:6379> set score 99.1
OK
192.168.86.128:6379> incrbyfloat score 0.9
“100”
192.168.86.128:6379> keys *
1)“k1”
2)“k3”
3)“k2”
4)“score”
5)“age”
6)“name”
192.168.86.128:6379> setnx name lisi
(integer) 0
192.168.86.128:6379> setnx name1 lisi
(integer) 1
192.168.86.128:6379> get name1
“lisi”
192.168.86.128:6379> expire name 10
(integer) 1
192.168.86.128:6379> ttl name
(integer) 6
192.168.86.128:6379> ttl name
(integer) 2
192.168.86.128:6379> ttl name
(integer) -2
192.168.86.128:6379> keys *
1)“k1”
2)“k3”
3)“k2”
4)“score”
5)“name1”
6)“age”
192.168.86.128:6379> setex name 10 jack
OK
192.168.86.128:6379> ttl name
(integer) 5
192.168.86.128:6379> ttl name
(integer) 1
192.168.86.128:6379> ttl name
(integer) -2

key The hierarchy of

192.168.86.128:6379> set heima:user:1 ‘{“id”:1, “name”:“Jack”, “age”: 21}’
OK
192.168.86.128:6379> set heima:user:2 ‘{“id”:2, “name”:“Rose”, “age”: 18}’
OK
192.168.86.128:6379> set heima:product:1 ‘{“id”:1, “name”:“ millet 11”, “price”: 4999}’
OK
192.168.86.128:6379> set heima:product:2 ‘{“id”:2, “name”:“ glory 6”, “price”: 2999}’
OK
192.168.86.128:6379> keys *
1)“k3”
2)“k1”
3)“heima:user:2”
4)“score”
5)“name1”
6)“heima:product:1”
7)“heima:product:2”
8)“k2”
9)“heima:user:1”
10)“age”

Hash type

192.168.86.128:6379> hset heima:user:3 name Lucy
(integer) 1
192.168.86.128:6379> hset heima:user:3 age 21
(integer) 1
192.168.86.128:6379> hset heima:user:3 age 18
(integer) 0
192.168.86.128:6379> hget heima:user:3 age
“18”
192.168.86.128:6379> hmset heima:user:4 name hei age 23 sex man
OK
192.168.86.128:6379> hmget heima:user:4 name age sex
1)“hei”
2) “23”
3) “man”
192.168.86.128:6379> hgetall heima:user:4
1)“name”
2) “hei”
3) “age”
4) “23”
5) “sex”
6) “man”
192.168.86.128:6379> hkeys heima:user:4
1)“name”
2) “age”
3) “sex”
192.168.86.128:6379> hvals heima:user:4
1)“hei”
2) “23”
3) “man”
192.168.86.128:6379> hincrby heima:user:4 age 10
(integer) 33
192.168.86.128:6379> hvals heima:user:4
1)“hei”
2) “33”
3) “man”
192.168.86.128:6379> hsetnx heima:user:4 sex woman
(integer) 0
192.168.86.128:6379> hsetnx heima:user:3 sex man
(integer) 1
192.168.86.128:6379> hgetall heima:user:3
1)“name”
2) “Lucy”
3) “age”
4) “18”
5) “sex”
6) “man”

List type

192.168.86.128:6379> lpush users 1 2 3
(integer) 3
192.168.86.128:6379> lrange users 0 -1
1)“3”
2) “2”
3) “1”
192.168.86.128:6379> rpush users 4 5 6
(integer) 6
192.168.86.128:6379> lpop usres 1
(nil)
192.168.86.128:6379> lpop users 1
1)“3”
192.168.86.128:6379> lrange users 0 -1
1)“2”
2) “1”
3) “4”
4) “5”
5) “6”
192.168.86.128:6379> rpop users 1
1)“6”
192.168.86.128:6379> lrange users 0 -1
1)“2”
2) “1”
3) “4”
4) “5”
192.168.86.128:6379> blpop user1 100
Open another window
192.168.86.128:6379> lpush user1 jack
(integer) 1
192.168.86.128:6379> blpop user1 100
1)“user1”
2) “jack”
(27.58s)

set type

192.168.86.128:6379> sadd s1 a b c
(integer) 3
192.168.86.128:6379> smembers s1
1)“c”
2) “a”
3) “b”
192.168.86.128:6379> srem s1 a
(integer) 1
192.168.86.128:6379> sismember s1 a
(integer) 0
192.168.86.128:6379> scard s1
(integer) 2

192.168.86.128:6379> sadd zs lisi wangwu zhaoliu
(integer) 3
192.168.86.128:6379> sadd ls wangwu mazi ergou
(integer) 3
192.168.86.128:6379> sinter zs ls
1)“wangwu”
192.168.86.128:6379> sdiff zs ls
1)“lisi”
2)“zhaoliu”
192.168.86.128:6379> sunion zs ls
1)“lisi”
2)“zhaoliu”
3)“wangwu”
4)“mazi”
5)“ergou”
192.168.86.128:6379> sismember zs lisi
(integer) 1
192.168.86.128:6379> sismember ls zhangsan
(integer) 0
192.168.86.128:6379> srem zs lisi
(integer) 1
192.168.86.128:6379> smembers zs
1)“wangwu”
2)“zhaoliu”

sortedset type

192.168.86.128:6379> zadd stus 85 Jack 89 Lucy 82 Rose 95 Tom 78 jerry 92 amy 76 miles
(integer) 7
192.168.86.128:6379> zrem stus Tom
(integer) 1
192.168.86.128:6379> zrank stus Rose
(integer) 2
192.168.86.128:6379> zrevrank stus Rose
(integer) 3
192.168.86.128:6379> zcard stus
(integer) 6
192.168.86.128:6379> zcount stus 0 80
(integer) 2
192.168.86.128:6379> zincrby stus 2 amy
“94”
192.168.86.128:6379> zrevrange stus 0 2
1)“amy”
2) “Lucy”
3) “Jack”
192.168.86.128:6379> zrangebyscore stus 0 80
1)“miles”
2) “jerry”