Common commands of redis
Keys: returns all key that satisfy a given pattern.
127.0.0.1 6379 > keys *
1) "num1"
2) "mylist3"
3) "key3"
4) "myzset2"
5) "name"
6) "mylist6"
7) "myset7"
8) "myzset3"
9) "myset3"
10) "num2"
11) "myhash"
12) "myset6"
13) "myset4"
14) "mylist2"
15) "key1"
16) "myzset"
17) "nane"
18) "email"
19) "key4"
20) "key2"
21) "mylist4"
22) "myset2"
23) "foo"
24) "myset"
127.0.0.1 purl 6379 > keys myzset*
1) "myzset2"
2) "myzset3"
3) "myzset"
Exists: confirm whether a key exists.
127.0.0.1 purl 6379 > exists name
(integer) 1
127.0.0.1 purl 6379 > exists age
(integer) 0
Del: delete a key
127.0.0.1 purl 6379 > del name
(integer) 1
127.0.0.1 purl 6379 > exists name
(integer) 0
Expire: sets the expiration time of a key.
127.0.0.1 purl 6379 > set addr cq
OK
127.0.0.1 6379 > expire addr 10
(integer) 1
127.0.0.1 purl 6379 > ttl addr
(integer) 8
127.0.0.1 purl 6379 > ttl addr
(integer) 6
127.0.0.1 purl 6379 > ttl addr
(integer) 4
127.0.0.1 purl 6379 > ttl addr
(integer) 2
127.0.0.1 purl 6379 > ttl addr
(integer)-2
Move: transfer the key from the current database to another database.
127.0.0.1 select 6379 > 0
OK
127.0.0.1 6379 > set age 30
OK
127.0.0.1 purl 6379 > get age
"30"
127.0.0.1 move age 6379 > 1
(integer) 1
127.0.0.1 purl 6379 > get age
(nil)
127.0.0.1 select 6379 > 1
OK
127.0.0.1 get age [1] >
"30"
Persist: removes the expiration time of a given key.
127.0.0.1 6379 > set age 30
OK
127.0.0.1 expire age 6379 >
(integer) 1
127.0.0.1 purl 6379 > ttl age
(integer) 298
127.0.0.1 purl 6379 > persist age
(integer) 1
127.0.0.1 purl 6379 > ttl age
(integer)-1
Randomkey: a key that randomly returns the key space.
127.0.0.1 purl 6379 > randomkey
"myzset3"
127.0.0.1 purl 6379 > randomkey
"key4"
Rename: rename key.
127.0.0.1 purl 6379 > keys age*
1) "age"
127.0.0.1 purl 6379 > rename age age_new
OK
127.0.0.1 purl 6379 > keys age*
1) "age_new"
Type: the type of return value.
127.0.0.1 purl 6379 > type age_new
String
127.0.0.1 purl 6379 > type myzset2
Zset
127.0.0.1 purl 6379 > type mylist2
List
Ping: test whether the connection is alive.
127.0.0.1 purl 6379 > ping
PONG
Echo: print something on the command line.
127.0.0.1 purl 6379 > echo stone
"stone"
Select: options database. Redis database number from 0 to 15, you can choose any database to access the data.
127.0.0.1 select 6379 > 1
OK
127.0.0.1 get age [1] >
"30"
127.0.0.1 select 6379 [1] >
(error) ERR DB index is out of range
127.0.1 select 6379 [1] >
OK
Dbsize: returns the number of key in the current database.
127.0.0.1 purl 6379 > dbsize
(integer) 24
127.0.0.1 select 6379 > 1
OK
127.0.0.1 dbsize [1] >
(integer) 1
Info: get server information and statistics.
127.0.0.1 purl 6379 > info
# Server
Redis_version:4.0.1
Config get: gets the parameter settings.
127.0.0.1 purl 6379 > config get dir
1) "dir"
2) "/ root/redis-4.0.1"
127.0.0.1 purl 6379 > config get max*
1) "maxmemory"
2) "0"
3) "maxmemory-samples"
4) "5"
5) "maxclients"
6) "10000"
7) "maxmemory-policy"
8) "noeviction"
Flushdb: deletes all key in the currently selected database.
127.0.0.1 select 6379 > 1
OK
127.0.0.1 dbsize [1] >
(integer) 1
127.0.0.1 flushdb [1] >
OK
127.0.0.1:6
Flushall: delete all key from all databases.
127.0.1 set age 6379 [1] >
OK
127.0.0.1 dbsize [1] >
(integer) 1
127.0.1 select 6379 [1] >
OK
127.0.0.1 purl 6379 > dbsize
(integer) 24
127.0.0.1 purl 6379 > flushall
OK
127.0.0.1 purl 6379 > dbsize
(integer) 0
127.0.0.1 select 6379 > 1
OK
127.0.0.1 dbsize [1] >
(integer) 0
Security: sets the password that the client needs to use for any operation after connecting.
127.0.0.1 config get requirepass [1] >
1) "requirepass"
2) "
127.0.0.1 config set requirepass 6379 [1] >
OK
127.0.0.1 exit [1] >
[root@D2-LZY245 redis-4.0.1] # src/redis-cli
127.0.0.1 6379 > set age 30
(error) NOAUTH Authentication required.
127.0.0.1 6379 > auth 123456
OK
127.0.0.1 6379 > set age 30
OK
[root@D2-LZY245 redis-4.0.1] # src/redis-cli-a 123456
127.0.0.1 purl 6379 > set name stone
OK
127.0.0.1 purl 6379 > get name
"stone"
