nuhptr / pzn-redis

✅ PZN Learn how to know using redis

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