There are two ways to check the redis version:
1. redis-server --version and redis-server -v
The results obtained Yes: Redis server v=2.6.10 sha=00000000:0 malloc=jemalloc-3.2.0 bits=32
2, redis-cli --version and redis-cli -v
The result obtained is: redis-cli 2.6.10
Strictly speaking: the result obtained through redis-cli should be the version of redis-cli, but redis-cli and redis-server generally come from the same set Compiled from source code. So it should be the same.
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Redis is a powerful database solution because it provides fast performance, rich data structures, high availability and scalability, persistence capabilities, and a wide range of ecosystem support. 1) Extremely fast performance: Redis's data is stored in memory and has extremely fast read and write speeds, suitable for high concurrency and low latency applications. 2) Rich data structure: supports multiple data types, such as lists, collections, etc., which are suitable for a variety of scenarios. 3) High availability and scalability: supports master-slave replication and cluster mode to achieve high availability and horizontal scalability. 4) Persistence and data security: Data persistence is achieved through RDB and AOF to ensure data integrity and reliability. 5) Wide ecosystem and community support: with a huge ecosystem and active community,

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Redis supports a variety of data structures, including: 1. String, suitable for storing single-value data; 2. List, suitable for queues and stacks; 3. Set, used for storing non-duplicate data; 4. Ordered Set, suitable for ranking lists and priority queues; 5. Hash table, suitable for storing object or structured data.

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