You can use the KEYS command
KEYS pattern
for example
List all keys
redis> keys *
List matching keys
redis>keys apple* 1) apple1 2) apple2
Supplementary: common commands for redis - KEY
Redis is an open source (BSD-licensed), in-memory data structure storage system that can be used as a database, cache, and messaging middleware. It supports many types of data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs and geospatial index radius queries. Redis has built-in replication, Lua scripting, LRU eviction, transactions, and different levels of disk persistence, and provides a variety of features through Redis Sentinel and Cluster. Sentinel and Cluster to provide high availability.
However, the most commonly used commands are those related to key and the five major data types, key, strings, hashes, lists, sets, and sorted sets. In this section, let's look at the commands related to KEY.
key：
1、KEYS pattern
Find all keys that match the given pattern, keys * View all cached keys
2、DEL key1 key2
Delete the specified caches (one or more)
3、DUMP key
Derive the value of key, if key does not exist, then return nil; otherwise, return the serialized value.
"\x00\x02v3\b\x00\xf1*K%b\xcd\x8e\xa0"
4、EXISTS key
Queries whether a key exists
5、EXPIRE key 20
Set the number of seconds a key will expire (in seconds)
6、TTL key
Get the valid time of the key (in seconds), if the key does not exist, return -2, it is recommended to test the effect with EXPIRE key.
7、EXPIRE key 20000
Setting the validity time of the key (in milliseconds)
8、PTTL key
Get the number of valid milliseconds for the key (in milliseconds)
9、RENAME key newkey
Rename a key, if the newkey already exists, then use the value of the renamed key to overwrite to the value of the old newkey that already exists, see my test below
10、RENAMENX key newkey
Rename a key, the new key must be a non-existing key
Returns 1 if the modification was successful. Returns 0 if the newkey already exists.
11、RANDOMKEY
Returns a random key
12、TYPE key
Get the storage type of the key
13、MOVE key db
Move the key to another database
What does that mean? We vim , /databases to see that the
From the comments, we know that there are 16 DBs in redis, ranging from 0-15, and the default is D0, which we can specify with the command
SELECT dbid to select a different DB, e.g. select 1; select 15, etc. Look at the following test
14. FLUSHDB and FLUSHALL
We know that there are 16 DBs in redis by default, so FLUSHDB is to clear all the data in the current DB (use with caution) and FLUSHALL is to clear all the data in all the DBs (don't use).
Here's an example to test FLUSHALL.
Little Maple Warm Tips:
1、Each command should be knocked once, not eyeballing it
2, I'm here just commonly used commands, but also need you to go to the official website to expand their own
The above is a personal experience, I hope it can give you a reference, and I hope you can support me more. If there is any mistake or something that has not been fully considered, please do not hesitate to give me advice.