How to view versions using redis-cli

Checking the Redis Version Using redis-cli

This article will guide you through several ways to check the Redis server version using the redis-cli command-line interface. We'll cover different approaches and highlight where to find the version information within the output.

Checking the Redis Version with redis-cli

The simplest and most direct way to check the Redis version using redis-cli is to use the INFO command. This command provides a wealth of information about the Redis server, including the version number. Here's how:

1. Open your terminal or command prompt.
2. Connect to your Redis server: Use the command redis-cli -h <hostname> -p <port> where <hostname> is the address of your Redis server (usually localhost if it's running on the same machine) and <port> is the port number Redis is listening on (usually 6379). If you're connecting to a local instance on the default port, you can simply use redis-cli.
3. Execute the INFO command: Type INFO and press Enter. This will return a large amount of server information.

The version number will be located within this output, specifically in the redis_version field. You might see something like this:

<code># Server
redis_version:6.2.5
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:6e9037237a55b30f
redis_mode:standalone
os:Linux 5.15.0-76-generic x86_64
arch_bits:64
multiplexing_api:epoll
atomicvar:atomic-builtin
gcc_version:11.3.0
process_id:12345
run_id:a1b2c3d4e5f6
tcp_port:6379
uptime_in_seconds:3600
uptime_in_days:0
hz:10
configured_hz:10
lru_clock:2147483647
executable:redis-server
config_file:/etc/redis/redis.conf</code>

In this example, the Redis version is 6.2.5. You can easily parse this output to extract the version number using scripting languages like Python or shell scripting if needed.

Determining the Redis Server Version Using the Command-Line Interface

This question is essentially the same as the first one. The INFO command is the primary and most reliable method to determine the Redis server version via the command-line interface (redis-cli). There are no other single commands that directly and concisely return only the version number.

What Command in redis-cli Displays the Redis Version Information?

Again, the INFO command is the answer. While other commands might indirectly hint at the version (by the features they support or the way they format their output), INFO is the dedicated command designed to provide comprehensive server information, including the version number.

Finding the Version Number Within the Output of a redis-cli Command

The version number, as detailed above, is found within the output of the INFO command. Specifically, it's in the redis_version field. If you're working with the output programmatically, you can search for this field name to extract the version number efficiently. Remember that the exact formatting might vary slightly depending on the Redis version itself, but the redis_version key will always be present.

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