5 Data
Every entry filed under Data and its subtopics.
What kind of help
Works on
What do these mean?
- Beginner
- You are new to this topic.
- Intermediate
- You use it, and want to get better.
- Advanced
- You know it well and need the details.
- Guided project
- Build something small from start to finish, step by step.
- Explains an idea
- Plain words on how something works and why.
- Step by step
- Numbered steps to get one task done.
- Cheat sheet
- Commands and options in a table, to look up fast.
- Fixes an error
- An error message, what it means, and how to solve it.
4 entries match these filters
- 0425 jq cheat script: pretty-print, filter and flatten JSON from a file or stdin A small read-only bash wrapper around jq with the recipes you keep looking up: pretty, compact, sorted keys, list paths, pick fields,… Beginner · Cheat sheet · Linux, macOS Script jq & JSON on the command line · Modern command-line tools · Text processing 15 Oct 2026
- 0075 CSV to JSON converter (Python, standard library) Convert any CSV file with a header row into a JSON array or JSON Lines. Handles quoted fields, a byte order mark,… Beginner · Step by step · Any system Script CSV & JSON · Files & automation 15 Oct 2026
- 0077 SQL cheat sheet: a runnable reference for everyday queries One SQL file that builds a tiny database and demonstrates filtering, sorting, grouping, joins, CASE, CTEs, window functions, safe updates and indexes.… Beginner · Cheat sheet · Any system Script Joins · Queries 15 Oct 2026
- 0009 CSV to JSON converter A small command-line tool that turns a CSV file into a JSON array of objects, with optional number detection, custom delimiters and… Beginner · Step by step · Any system Script CSV & JSON · Files & automation 15 Oct 2026