redis

https://redis.io/

$ apt-get install redis-server
$ redis-cli --version
redis-cli 5.0.3

$ redis-cli

127.0.0.1:6379> keys *
(empty list or set)

127.0.0.1:6379> ping
pong

127.0.0.1:6379> set bahamas nassau
ok

127.0.0.1:6379> get japan
(nil)

127.0.0.1:6379> get bahamas
"nassau"

127.0.0.1:6379> mset bahamas nassau norway oslo
ok

127.0.0.1:6379> mget bahamas norway
1) nassau
2) oslo

127.0.0.1:6379> exists bahamas
(integer) 1

127.0.0.1:6379> exists sweden
(integer) 0

127.0.0.1:6379> hset ilnurgi_site url "http://ilnurgi.ru"
(integer) 1

FLUSHDB

Очистка базы данных

127.0.0.1:6379> FLUSHDB
OK

Множества

SADD

SCARD

SDIFF

SDIFFSTORE

SINTER

SINTERSTORE

SISMEMBER

SMEMBERS

SMOVE

SPOP

SRANDMEMBER

SREM

SSCAN

SUNION

SUNIONSTORE

Хеши

HDEL

HEXISTS

HGET

HGETALL

HINCRBY

HINCRBYFLOAT

HKEYS

HLEN

HMGET

HMSET

HSCAN

HSET

HSETNX

HSTRLEN

HVALS

Списки

BLPOP

BRPOP

BRPOPLPUSH

LINDEX

LINSERT

LLEN

LPOP

LPUSH

LPUSHX

LRANGE

LREM

LSET

LTRIM

RPOP

RPOPLPUSH

RPUSH

RPUSHX

Строки

APPEND

BITCOUNT

BITFIELD

BITOP

BITPOS

DECR

DECRBY

GET

GETBIT

GETRANGE

GETSET

INCR

INCRBY

INCRBYFLOAT

MGET

MSET

MSETNX

PSETEX

SET

SETBIT

SETEX

SETNX

SETRANGE

STRLEN