Scripts

Short programs and one-liners, ready to copy. Every script says what it changes and how to undo it.

53 entries match these filters

0044 A starter set of Git aliases Short names for the Git commands you type all day, such as a one-line status, a graph log, and a safe force… Beginner · Cheat sheet · Linux, macOS, Windows Script Git tools 15 Oct 2026
0058 Safe bash script template with set ‑euo pipefail and trap A starting point for bash scripts that stops on errors, rejects unset variables, cleans up temp files on exit and parses options.… Intermediate · Cheat sheet · Linux, macOS Script Shell scripting 15 Oct 2026
0059 Incremental snapshot backups with rsync A bash script that copies a folder into dated snapshots with rsync, hard-links unchanged files to the previous snapshot to save space,… Advanced · Step by step · Linux, macOS Script Backups & syncing · Shell scripting 15 Oct 2026
0060 Find the biggest files and folders eating your disk A short bash script that lists the largest files over a size limit and the largest subfolders, using find, du, sort and… Beginner · Step by step · Linux, macOS Script Finding files & text · Text processing 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
0010 Find duplicate files by content Scans folders and lists files with identical content, using file size first and SHA-256 hashes second. It is read-only and only reports… Intermediate · Step by step · Any system Script Files & automation 15 Oct 2026
0011 Bootstrap a new Python project with a venv A Bash script that creates a project folder with a virtual environment, .gitignore, requirements.txt and a starter main.py, then runs it to… Intermediate · Step by step · Linux, macOS Script Environments & packages 15 Oct 2026
0019 fetch with timeout, retries and proper error handling A reusable fetchJson helper for Node 20+ and browsers that adds a timeout, retries with backoff for temporary failures, and clear errors… Intermediate · Step by step · Any system Script Async code · Making requests 15 Oct 2026
0020 Debounce and throttle functions in plain JavaScript Two small dependency-free helpers that limit how often a function runs: debounce waits for a pause, throttle runs at most once per… Intermediate · Step by step · Any system Script Patterns 15 Oct 2026
0021 Read and write files in Node.js with fs/promises A complete Node script that walks a folder, reads text files, and writes a JSON report safely, showing the everyday fs/promises calls… Beginner · Step by step · Any system Script Node.js 15 Oct 2026
0022 Build a small Node.js CLI with util.parseArgs A complete, dependency-free command-line tool in Node: options and flags with parseArgs, input from files or a pipe, help text, and meaningful… Intermediate · Step by step · Any system Script Node.js 15 Oct 2026
0023 Run async tasks with a concurrency limit A small mapLimit helper that runs an async function over many items with at most N in flight, keeps result order, stops… Advanced · Step by step · Any system Script Async code 15 Oct 2026
0032 First-time Git setup: name, email, default branch, SSH or HTTPS Tell Git who you are, pick sensible defaults, and choose between SSH and HTTPS for GitHub. Includes a small script that applies… Beginner · Step by step · Linux, macOS, Windows Script Setup 15 Oct 2026