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Command line interface

A CLI, or command-line interface, is a console that helps users issue commands to a program.
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Command line interface

The beauty of Unix pipelines

I would like to show some examples of this philosophy in action – of how one can use different unix tools together to accomplish something powerful.

This post takes you step-by-step through printing a leaderboard of authors based on number of commits to a git repo, browsing memes on reddit, setting your desktop wallpaper, and getting a random movie from an IMDB list.

Lazarus Lazaridis

stup - A CLI to easily save, access, and organize daily notes

The name derives from the Standup meetings since its initial purpose was to cover my need for keeping my Standup notes in a convenient way.

Quickly enter notes with a flexible text interface. Note creation looks like:

stup add @|--at|-@ <when> -n|--note "<note text>" -c|--category "<category-name>"

Then you can pull them back out by date, date-range, and/or category with:

$ stup show @ <when> -c|--category "<category-name>"

Notes are all saved as plaintext (markdown) so throw the entire directory in your synced-cloud-folder solution of choice and you have instant notes sync across all your devices.

Daniel Stenberg

Curl's CLI can now write out JSON

This does not mean curl can fetch some JSON and print it to STDOUT. That would not be new. What it means is that the --write-out option now supports JSON as an output format. Pipe that output to a tool like jq and you get something like this:

  "url_effective": "",
  "http_code": 200,
  "response_code": 200,
  [lots more but I snipped them for length]

Which is pretty cool, if you ask me.


GoTube – a very simple command line tool for downloading YouTube videos

This repository contains a single-file implementation of YouTube video downloader written in Go. It does not require any third-party packages, only built-in packages from the standard library. The code is compact and easily-readable.

Nowhere near the features of youtube-dl (which is like a swiss army knife for downloading videos off the internet), but cool nonetheless. You can read the entirety of GoTube’s source code in a single sitting, which makes it great for learning and tinkering.


The official GitHub CLI is now in beta

gh brings many of GitHub’s concepts to the terminal. You know, things like pull requests and issues. The tool is still under heavy development and they’re looking for feedback. If you’re an early adopter, this is the perfect time to get involved and let your voice be heard. Oh, and if you’ve been using hub for years already, here’s how the new shiny compares:

gh is a new project for us to explore what an official GitHub CLI tool can look like with a fundamentally different design. While both tools bring GitHub to the terminal, hub behaves as a proxy to git and gh is a standalone tool.

The official GitHub CLI is now in beta

Amazon Web Services

The missing cron CLI for AWS Cloudwatch and Lambda

Do you have an AWS account? Great. Do you want to run cron jobs in the cloud?

Cronyo provides A simple CLI to manage your cron jobs on AWS.

In addition, Cronyo can instantly deploy a couple of super-simple, helpful and secure lambda functions to perform HTTP GET/POST requests for you. So if you need to trigger any webhooks on schedule, an AWS account and Cronyo is all you need :)

Command line interface

A CLI for displaying network utilization by process, connection, and remote host

bandwhich sniffs a given network interface and records IP packet size, cross referencing it with the /proc filesystem on linux or lsof on MacOS. It is responsive to the terminal window size, displaying less info if there is no room for it. It will also attempt to resolve ips to their host name in the background using reverse DNS on a best effort basis.

This looks much better than me fumbling through lsof’s man page for ten minutes and then giving up.

A CLI for displaying network utilization by process, connection, and remote host
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