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16 entries match these filters

0002 Python cheat sheet: strings, lists, dicts and f-strings The everyday methods for text, lists and dictionaries, plus f-string formatting and comprehensions, each with a one-line example you can paste into… Beginner · Reference · Any system Article Basics 15 Oct 2026
0003 pathlib cheat sheet: files and folders in Python pathlib.Path is the modern way to build paths, read and write files, and list or search folders in Python. This page lists… Beginner · Reference · Any system Article Files & automation 15 Oct 2026
0017 JavaScript array methods cheat sheet: map, filter, reduce and friends A quick reference for the array methods you use every day, with what each one returns and whether it changes the original… Beginner · Reference · Any system Article Basics 15 Oct 2026
0025 Regular expressions cheat sheet (JavaScript flavor) The regex syntax you actually use, from character classes and quantifiers to groups, lookarounds and flags, with the JavaScript methods that apply… Beginner · Reference · Any system Article Basics · Basics 15 Oct 2026
0037 Git cheat sheet The Git commands you reach for most, grouped by task and using the modern switch and restore forms. Copy, paste, and replace… Beginner · Reference · Any system Article Git 15 Oct 2026
0057 Shell cheat sheet: everyday commands A quick reference for moving around, managing files, viewing and searching text, checking processes and disk space in bash and zsh, with… Beginner · Reference · Linux, macOS Article Basics · Command-line tools 15 Oct 2026
0082 HTTP status codes: the common ones and what to do A quick reference to the HTTP status codes you will meet most often, what each one means, and the first thing to… Beginner · Reference · Any system Article References · Status codes 15 Oct 2026
0121 PCA 3.x Service CLI basics: connecting and finding your way around The Service CLI administers the Private Cloud Appliance 3.x Service Enclave. Connect with SSH on port 30006 and use list, show, help,… Intermediate · Reference · Any system Article Administration & monitoring 15 Oct 2026
0140 kubectl cheat sheet: the commands you use every day A compact reference of everyday kubectl commands: contexts and namespaces, listing and inspecting objects, logs and exec, applying changes, rollouts, scaling and… Beginner · Reference · Any system Article Concepts · Troubleshooting 15 Oct 2026
0157 oc cheat sheet: everyday OpenShift CLI commands The oc commands you use every day, grouped by task: login and projects, apps and builds, routes, config, debugging, permissions and admin… Intermediate · Reference · Any system Article Deploying applications · Troubleshooting 15 Oct 2026
0185 Ansible ad-hoc commands cheat sheet One-line ansible commands for quick jobs across many servers: ping hosts, run a command, copy files, manage packages, users and services, gather… Intermediate · Reference · Linux, macOS Article Ansible 15 Oct 2026
0199 psql meta-commands cheat sheet The backslash commands you use every day in psql: connecting, listing databases, tables and roles, describing objects, timing queries, expanded output and… Beginner · Reference · Any system Article Install & connect · Roles & administration 15 Oct 2026
0215 mysql command-line client cheat sheet The connection options, built-in commands and everyday SQL you need in the mysql (and mariadb) command-line client, on one page. Beginner · Reference · Any system Article Administration · Queries 15 Oct 2026
0222 Connecting to Oracle: SQL*Plus, SQLcl, EZConnect, tnsnames.ora and the listener Clients reach an Oracle database through the listener, using an Easy Connect string or a tnsnames.ora alias. Here are the formats, the… Intermediate · Reference · Linux, macOS, Windows Article Administration · Concepts & tools 15 Oct 2026
0232 mongosh cheat sheet: CRUD, indexes and explain() The mongosh commands you use every day: switching databases, inserting, querying, updating and deleting documents, creating indexes and checking a query plan… Beginner · Reference · Any system Article Basics 15 Oct 2026
0236 Redis data types and commands: a quick reference Redis stores values under keys, and each value has a type: string, hash, list, set, sorted set or stream. The essential commands… Beginner · Reference · Any system Article Basics 15 Oct 2026