refactor: dedicate article to the cli utility

knowledge base/redis-cli.md

@@ -0,0 +1,56 @@
+# `redis-cli`
+
+## Table of contents <!-- omit in toc -->
+
+1. [TL;DR](#tldr)
+1. [Further readings](#further-readings)
+1. [Sources](#sources)
+
+## TL;DR
+
+```sh
+# Install it.
+asdf plugin add 'redis-cli' && asdf install 'redis-cli' '6.2.12'
+brew install 'redis'
+dnf install 'redis'
+
+# Connect to servers.
+redis-cli -s 'socket'
+redis-cli -h 'host.fqdn' -p 'port'
+redis-cli … -a 'password'
+REDISCLI_AUTH='password' redis-cli
+redis-cli -u 'redis://username:password@host.fqdn:port/db_number'
+
+# Execute commands.
+redis-cli 'command' 'arg_1' … 'arg_N'
+redis-cli -h 'localhost' 'PING'
+redis-cli -n 'db_number' 'INCR' 'a'
+
+# Execute commands from the master's container in kubernetes.
+kubectl exec redis-0 -- redis-cli 'PING'
+
+# Debug the server.
+redis-cli … 'MONITOR'
+```
+
+## Further readings
+
+- Redis' [website]
+- Redis' [documentation]
+
+## Sources
+
+- [cheat.sh]
+
+All the references in the [further readings] section, plus the following:
+
+<!-- project's references -->
+[documentation]: https://redis.io/docs/
+[website]: https://redis.io/
+
+<!-- in-article references -->
+[further readings]: #further-readings
+
+<!-- internal references -->
+<!-- external references -->
+[cheat.sh]: https://cheat.sh/redis-cli

knowledge base/redis.md

@@ -1,11 +0,0 @@
-# Redis
-
-## TL;DR
-
-```sh
-# debug the server
-redis-cli -h "${HOST}" -p "${PORT}" --user "${USERNAME}" --askpass MONITOR
-
-# execute the commands from the master's container on kubernetes
-kubectl exec redis-0 -- redis-cli MONITOR
-```