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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Recommend me a scripting language (lemmy.ml)

submitted 2 months ago by gomp@lemmy.ml to c/linux@lemmy.ml

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I've been looking around for a scripting language that:

has a cli interpreter
is a "general purpose" language (yes, awk is touring complete but no way I'm using that except for manipulating text)
allows to write in a functional style (ie. it has functions like map, fold, etc and allows to pass functions around as arguments)
has a small disk footprint
has decent documentation (doesn't need to be great: I can figure out most things, but I don't want to have to look at the interpter source code to do so)
has a simple/straightforward setup (ideally, it should be a single executable that I can just copy to a remote system, use to run a script and then delete)

Do you know of something that would fit the bill?

Here's a use case (the one I run into today, but this is a recurring thing for me).

For my homelab I need (well, want) to generate a luhn mod n check digit (it's for my provisioning scripts to generate synchting device ids from their certificates).

I couldn't find ready-made utilities for this and I might actually need might a variation of the "official" algorithm (IIUC syncthing had a bug in their initial implementation and decided to run with it).

I don't have python (or even bash) available in all my systems, and so my goto language for script is usually sh (yes, posix sh), which in all honestly is quite frustrating for manipulating data.

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[–] bruce965@lemmy.ml 5 points 2 months ago* (last edited 2 months ago) (2 children)

JavaScript through Node.js, or TypeScript through Deno if you like typed languages. They both check all your boxes (just check the size of the executables to make sure that it's what you would consider "small footprint").

Both languages and runtimes are quite popular, so you will find any answers on StackOverflow.

They are both single-executable with little dependencies, and Deno can also compile your scripts to self-contained executables.

As a bonus, both support the vast and extensive NPM package repository where you can find all sort of libraries for even the most complex tasks.

And they work with your favourite IDE or editor, not just syntax highlighting, but also contextual suggestions.

[–] gomp@lemmy.ml 4 points 2 months ago (1 children)

Installing node uses some 60MB (according to zypper on my current desktop). I'd rather have something small and possibly that consists of a single executable.

As a bonus, both support the vast and extensive NPM package repository

That's not necessarily a feature :) Package repos are great if you are a developer (I am one) working primarily with that language, but are frustrating if you just want to run things.

[–] bruce965@lemmy.ml 1 points 2 months ago* (last edited 2 months ago)

I thought so. Although almost nothing for modern standards, 60MB is not exactly tiny. Sorry about that.

On a different note, a repository is always a good thing imho. If you'd rather not have to worry about the dependency-pull step you can always include the dependencies with your sources, or just limit your code to using features included in the standard library.

[–] chunkystyles@sopuli.xyz 2 points 2 months ago

As a Java developer, and someone who never learned Python or other scripting languages, Node is my go-to scripting language. I've only come around to it for that in the past year or two. But it's great.