How to pass arguments via the command line?

Redis allows you to override configuration settings using command-line arguments when starting the Redis server. This can be particularly useful when you want to modify specific settings without modifying the entire configuration file. Here’s how to do it:

1. Locate the Redis Executable:

First, you need to know the path to the Redis executable (redis-server). If Redis is installed and available in your system’s PATH, you can simply use redis-server.

2. Understand the Argument Format:

The general format to pass arguments via the command line is:

redis-server path/to/redis.conf argument1 value1 argument2 value2 …

3. Pass Configuration Arguments:

Redis supports a variety of command-line arguments that correspond to configuration settings. You can specify these arguments after the path to the Redis configuration file (redis.conf).
For example, to set the Redis port and bind address, you can use the –port and –bind arguments:

redis-server /path/to/redis.conf –port 6379 –bind 127.0.0.1

The arguments are key-value pairs, where the key is the configuration setting name (without spaces) and the value is the new value you want to set.
If you’re not using a configuration file, you can also specify multiple arguments directly on the command line:

redis-server –port 6379 –bind 127.0.0.1 –maxmemory 1G

It’s important to note that not all configuration settings can be overridden via command-line arguments. Some settings might only be set in the configuration file.

4. Starting the Redis Server:

After specifying the desired arguments, start the Redis server by running the command. Redis will read the specified arguments and apply the changes to the server’s configuration during startup.

Note: Passing command-line arguments is useful for temporary changes and quick adjustments. For permanent changes, consider updating the Redis configuration file and restarting the server.

Tip: Always refer to the official Redis documentation or run redis-server –help to get a list of available command-line arguments and their descriptions.

Redis configuration involves setting various options and parameters that govern the behavior of the Redis server. Configuration settings impact aspects such as networking, memory usage, persistence, security, and more. The Redis configuration file, usually named redis.conf, is where these settings are defined. Redis provides a wide range of configuration options that allow you to tailor the server to your specific needs.