How to view versions from Redis via command line

Checking Redis Version via Command Line: A Comprehensive Guide

This article addresses several ways to check your Redis server version using the command-line interface. We'll explore the various commands and clarify the most efficient method.

How to Check Redis Version Using the Command Line?

The simplest and most direct way to check your Redis server version from the command line is using the INFO command. This command provides a wealth of information about your Redis instance, including the version number. Specifically, you need to execute the INFO command followed by SERVER to get the server information. This will return a multi-line string with various key-value pairs. The version information is contained within the redis_version key.

To do this, first connect to your Redis server using the redis-cli command-line tool. If you haven't already, make sure Redis is running and you know the connection details (host and port, typically localhost:6379). Then, type the following command:

<code class="bash">redis-cli INFO SERVER</code>

The output will be a large block of text. Look for the line containing redis_version. The value associated with this key is your Redis version. For example, you might see something like:

<code>redis_version:6.2.5</code>

This indicates that your Redis server is version 6.2.5.

How Can I Determine My Redis Server's Version Using the Command Line Interface?

As detailed above, the INFO SERVER command is the most effective way to determine your Redis server's version via the command-line interface. It provides a comprehensive overview of the server's configuration and status, including the crucial version information. Other INFO subcommands exist (e.g., INFO CLIENT, INFO MEMORY), but INFO SERVER is the most relevant for obtaining the version number.

While other methods might indirectly suggest the version (through observing the behavior of certain commands or checking configuration files), INFO SERVER offers a direct and unambiguous answer.

What Command Shows the Redis Version in the Terminal?

The command that directly shows the Redis version in the terminal is redis-cli INFO SERVER. As explained previously, this command provides a detailed report of the server's status, and the redis_version field within that report clearly displays the version number. This is the most reliable and recommended approach.

Avoid relying on indirect methods, such as examining log files or configuration files, as these may not always provide the current running version of the server. The INFO SERVER command directly queries the running server itself, guaranteeing the most up-to-date information.

Is There a Single Command to Display the Redis Version Number?

While the INFO SERVER command provides more than just the version number, it is effectively the single command that gives you the version number in a readily accessible way. There isn't a dedicated command solely for displaying the version; INFO SERVER is the most efficient and practical solution. Extracting just the version number from the output of INFO SERVER might require some text processing (e.g., using grep or awk), but the command itself is singular and provides the needed information.

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