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Database / REDIS

How do you connect to Redis using the CLI?

redis-cli is Redis's interactive command-line client, and connecting to a running instance is typically a single command specifying the host, port, and (if configured) authentication credentials:

redis-cli -h localhost -p 6379
redis-cli -h redis.example.com -p 6379 -a mypassword
redis-cli -h localhost -p 6379 --tls   # for a TLS-enabled instance

Once connected, commands can be typed interactively, or the CLI can run a single command non-interactively and exit (redis-cli GET mykey), which is convenient for scripting. Passing a password with -a on the command line is convenient but leaves the credential visible in shell history and process listings; --user combined with -a supports ACL-based authentication for a specific user rather than the legacy single-password AUTH, and reading the password from an environment variable or a config file is generally the safer approach for anything beyond quick local testing.

What flag connects redis-cli to a password-protected Redis instance?
Why is passing a password directly via -a on the command line not ideal for production use?

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