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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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Daniel Stenberg daniel.haxx.se

Daniel Stenberg is leaving Mozilla

We’ve been chronicling Daniel’s work on #curl for some time now. December 11, 2018 will be Daniel’s final official day at Mozilla. He assures us that his work on curl will continue, saying this in regards to his time dedicated to curl and where he works for his full-time income, “I don’t think my choice of future employer should have to affect that negatively too much, except of course in periods.” Here are the main points from Daniel (but you should certainly dig into the details): It’s been five great years, but now it is time for me to move on and try something else. …lots of the HTTP/2 development and the publication of that was made while I was employed by Mozilla and I fondly participated in that. …we’re also losing Mozilla as a primary sponsor of the curl project, since that was made up of them allowing me to spend some of my work days on curl and that’s now over. I will continue to follow and work with HTTP and other internet protocols very closely. The future is bright but unknown! “I don’t yet know what to do next.”

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Command line interface github.com

Run SQL directly on CSV or TSV files

q is a command line tool that allows direct execution of SQL-like queries on CSVs/TSVs (and any other tabular text files). q treats ordinary files as database tables, and supports all SQL constructs, such as WHERE, GROUP BY, JOINs etc. It supports automatic column name and column type detection, and provides full support for multiple encodings. An example of using q to count distinct values of a specific field (uuid of clicks data) q -H -t "SELECT COUNT(DISTINCT(uuid)) FROM ./clicks.csv"

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Command line interface github.com

A tool for writing Bash pipes with instant live preview

Meet up a.k.a. the Ultimate Plumber: The main goal of the Ultimate Plumber is to help interactively and incrementally explore textual data in Linux, by making it easier to quickly build complex pipelines, thanks to a fast feedback loop. This is achieved by boosting any typical Linux text-processing utils such as grep, sort, cut, paste, awk, wc, perl, etc., etc., by providing a quick, interactive, scrollable preview of their results.

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Command line interface github.com

dategrep prints lines matching a time range

dategrep reads a file and prints every line with a timestamp that falls into a user defined time range. When invoked on a normal file, dategrep uses a binary search to find the first matching line. The usefulness of this is perhaps best understood by seeing a few examples: dategrep --start "12:00" --end "12:15" syslog dategrep --end "12:15" --format "%b %d %H:%M:%S" syslog dategrep --last-minutes 5 syslog cat syslog | dategrep --end "12:15"

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Command line interface theptrk.com

Creating a simple 'did.txt' file

This post is a simple, step-by-step explanation of how Patrick created ‘an insanely simple “did” file accessible by terminal’. What’s interesting about it to me is not how to do it, but the idea of doing it itself. His motiviation: Time flies by when you’re learning how to code. Its super important to take a second every once in a while to simple write down what you did during the past mental sprint. Writing down what you learned solidifies the knowledge. This is a great truth, and one that applies far beyond learning how to code. Sometimes we need a did.txt just to recognize how much we’ve accomplished recently. For me, there are days when I get to the end and feel like I didn’t really accomplish much. If I’d catalogued my wins throughout the day as they occurred (no matter how small), I bet I’d feel different about that. However, I’m both busy and lazy (a hellacious pairing) and wouldn’t keep up with this habit unless it were dead simple. Patrick’s ‘did.txt’ solution is about as simple as it gets…

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Bash github.com

A command-line system information tool written in bash 3.2+

The overall purpose of Neofetch is to be used in screen-shots of your system. Neofetch shows the information other people want to see. There are other tools available for proper system statistic/diagnostics. Supports almost 150 different operating systems, so odds are it has you covered. Check my results below. Pretty decent uptime for a laptop, no?

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Diego ZoracKy github.com

MagiCLI can generate a command line interface for any module

MagiCLI was built to expand the use of npm modules. When all modules can be executed via CLI, npm becomes a source for anyone who wants to find a solution ti be run from a terminal and also for those who would like to call an existing solution written in Node.js from a program written in another language. For even more context, check out the intro post on Hacker Noon.

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Steven Loria github.com

Making the Node.js REPL more productive

Project-specific REPLs for Node.js I’m a bit surprised this functionality isn’t in the box, nonetheless: local-repl saves you from typing out imports every time you open a new Node.js REPL. You specify the modules and objects that you want to automatically import in either package.json or .replrc.js. It also lets you use await in the REPL without wrapping your code in async functions. That sounds quite nice.

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