redis_commands.properties

#start redis server on docker
docker run -d -p 6379:6379 --name my-redis redis

#start redis cli client
docker exec -it my-redis sh
redis-cli

#to monitor all the commands
redis-cli monitor 

#set a key and value
replaces any exising key of value bar
set bar 100
get bar
#ttl for 5 seconds
ttl bar 5

#to retrieve all the keys
keys *

#to delete a key
del name
#to delete all keys
flushall

#set expiry
setex name 5 dc
ttl name

#checks if a key is available or not. if exists it does not override
setnx hello world

#set multiple values in a single command
mset name1 dc name2 gayathri name3 mugund name4 shrisha

#increment, decrement value
incr num1
decr num1
incrby num1 5
decrby num1 5

#append value
set name hello
append name " world"
get name - > hello world

#Hashes---------------------------------------

hmset student name mugund clas N2
#to retrieve only the specific fields from the key "student"
hget student class
#to retrieve all the fields from key "student"
hgetall student

#to check if a field exists

hexists student surname

#to delete a specific field
hdel student class

#to get all keys in student
hkeys students

#Lists------------------------------------------------

#push items on top of the list
lpush num 1 2 3 4

#to retrieve the range of values from list
lrange num 0 10

#to popout elements from the top
lpop num 

#push items on bottom of the list
rpush num 5

#length of the list
llen num


#Sets------------------------------------------------

#add element to set
sadd name 1 2 3 4

#retrieve from set
smembers name

#find number of elements in set
scard name

#subtract myset1 from myset2
sdiff myset2 myset1


#Sorted Sets------------------------------------------------

#adding element to sorted set
zadd myset 1 a 2 b 3 c

#retrieve value using range
zrange myset 0 -1


#pubSub

#subscriber
subscribe my_channel

-subscribe based on pattern. Channels starting with r
psubscribe r*

#publisher
publish my-channel "hello world"