The hottest Command-line Substack posts right now

And their main takeaways
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mprocs: start all your project's commands at once

Bite code! • 1467 implied HN points • 22 Dec 25
🕹 Technology Command-line
  1. Put all your long-running dev commands in one mprocs.yaml and start them all with a single mprocs command so you don't need many terminal tabs.
  2. mprocs gives a simple TUI to watch process output and status, lets you switch between processes, restart them manually, or enable autorestart when one dies.
  3. It's a lightweight, minimal tool that supports cwd/env/OS-specific options and pairs nicely with just as a single interface for project commands.

The Sequence Engineering #676: Hacking with Gemini CLI

TheSequence • 84 implied HN points • 02 Jul 25
🕹 Technology Command-line
  1. Gemini CLI uses Google's powerful AI to improve command-line tasks. It makes using command-line tools easier and more efficient.
  2. The system logs its decisions and shows its thought process, which helps users understand what the AI is doing. This makes it trustworthy and easy to troubleshoot.
  3. With its flexible design, Gemini CLI allows for added features through plugins, creating a customizable experience tailored to users' needs.

Unix 1-liner using jq

CodeFaster • 108 implied HN points • 20 Jul 23
🕹 Technology Command-line
  1. The Unix 1-liner using jq efficiently filters and extracts specific data from a JSON response.
  2. Creating a small script like get-all-accounts to gather data beforehand is crucial for this command to work effectively.
  3. The jq command simplifies data processing by breaking down the process into four transformations.

sqlmesh cube_generate build part 2

davidj.substack • 23 implied HN points • 18 Dec 24
🕹 Technology Command-line
  1. The main goal is to create a command that generates metadata to build a semantic layer for SQL models. This is important because it helps in understanding the structure and relationships within the data.
  2. AI can enhance the process by taking the generated metadata and improving it for better usability. Using tools like OpenAI can make the process easier and faster.
  3. There's an ongoing focus on creating practical solutions rather than aiming for perfection. It's okay to make adjustments and improvements along the way as you learn what works best.

json-toolkit now in aptitude

CodeFaster • 72 implied HN points • 25 Apr 23
🕹 Technology Command-line
  1. JSON Toolkit offers a variety of tools for working with JSON and other data formats.
  2. You can use JSON Toolkit to convert data, manipulate it, and extract information efficiently.
  3. By using JSON Toolkit, you'll save time and effort on data processing tasks.
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GraphicsMagick: The Perfect Tool for Seamless Image Processing

Curious Devs Corner • 0 implied HN points • 14 Jul 24
🕹 Technology Command-line
  1. GraphicsMagick is a powerful tool for editing images through the command line. It can handle tasks like resizing, adding watermarks, and simulating effects such as oil painting.
  2. You can create animations and enhance images by adjusting brightness and colors using simple commands. This makes it easy to customize your images quickly.
  3. GraphicsMagick allows for task automation with shell scripts, meaning you can process multiple images at once without doing each step manually. This saves a lot of time.

Craft Powerful Bash Pipelines with the Unix Xargs Command

Curious Devs Corner • 0 implied HN points • 28 Aug 24
🕹 Technology Command-line
  1. The `xargs` command helps to build and run new commands by passing input from one command to another. It's particularly useful when you want to handle lots of files at once.
  2. You can use `xargs` with commands like `find` to perform specific actions on multiple files, making tasks like deleting or renaming files easier.
  3. By using options like `-p` and `-n`, you can interactively confirm actions and control how many arguments are processed at a time, allowing for safer execution of commands.