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#json (9)

Cheat sheets (9)

system_profiler — macOS Hardware & Software Inventory

Deep-dive on system_profiler(8) — macOS's built-in inventory tool. Covers data types, text/XML/JSON output, piping into jq and plutil, common SP* probes (hardware, displays, memory, storage, USB, network, software), detail levels, and fleet inventory recipes.
system_profiler macos sysadmin inventory hardware json plutil jq cli web-researched

Claude Code Settings and Permissions

Complete settings.json schema for Claude Code — permission rules, tool allowlists/denylists, environment variables, hooks, MCP, statusline, model selection, and file precedence.
claude-code settings permissions configuration json hooks

ffprobe — Media Stream Inspection

Comprehensive ffprobe reference for inspecting media files — formats, streams, frames, packets, chapters, metadata — with output formats (default, json, csv, xml, flat, ini), select_streams, show_entries, and one-liners for duration, fps, codec, resolution, and bitrate.
ffprobe ffmpeg video audio metadata json jq streams codec bitrate fps cli web-researched

jq — JSON Processor

Slice, filter, map, and transform JSON data from the command line. Covers all essential filters, built-in functions, select, map, reduce, streaming, jq 1.7/1.8 additions, and real-world API response processing.
jq json data cli api scripting web-researched

xidel Web Scraping & Data Extraction

Extract data from HTML, XML, and JSON using XPath, CSS selectors, pattern matching, and JSONiq from the command line.
xidel webscraping xpath html xml json data-extraction cli web-researched

Structured Output

Techniques for reliable structured generation — JSON mode, schema-constrained decoding, function/tool calls as output, and validator pairing with Pydantic or Zod.
structured-output json schema pydantic zod tool-use function-calling prompting

json — Stdlib JSON Encoder/Decoder

Encode and decode JSON in Python with the stdlib json module. Covers dumps/loads, indent/sort_keys/separators, custom default= and JSONEncoder, object_hook decoding, JSONL streaming, and orjson/ujson/msgspec comparison.
python stdlib json data serialization parsing

package.json Reference

Complete reference for the Node.js package manifest — name, version, scripts, dependencies, exports, workspaces, and the packageManager field for Corepack.
javascript npm packages node json

Python CLI Snippets

Short standalone Python scripts for common tasks — file I/O, JSON manipulation, HTTP requests, CSV processing, and data transformation.
python snippets cli scripts json csv http file-io