REDIS MEMORY DATABASE

https://redis.io/

Running Redis

redis-server
redis-server config/redis.conf
redis-cli -h localhost -p 6379

Data String

set test "Hello World"
get test
exists test -> 1
append test "add more hello world" -> get test
keys * -> list all keys
key test* -> list all keys that start with test
del test (delete key) -> get test -> (nil)

Data Range

set test "Hello World"
get test -> setrange test 6 "Redis" -> get test

Multiple Data String

mset key1 "Hello" key2 "World" key3 "Redis"
mget key1 key2 key3

Expiration

expire key 10 (seconds)
setex key 10 "Hello" (set key and expiration)
ttl key (time to live)

Increment and Decrement

incr key
decr key
get key
incrby key [value]
decrby key [value]
get key

Flush

flushdb (delete all keys in current database)
flushall (delete all keys in all databases)

Pipeline

redis-cli -h host -p port -n database --pipe < input-file (redis-cli -h localhost -p 6379 -n 0 --pipe < input-file.txt)

Transaction

multi (start transaction)
exec (execute transaction)
discard (cancel transaction)

Config

config get * -> list all configurations
config get *max* -> list all configurations that contains max
config get maxmemory -> get maxmemory configuration
config get databases
config get bind
config get save

Protected Mode

redis-cli -h 192.168.1.101 -p 6379