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Recommend me a scripting language (lemmy.ml)

submitted 4 months ago by [email protected] to c/[email protected]

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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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[–] moonpiedumplings 6 points 4 months ago* (last edited 3 months ago)

Not quite a scripting language, but I highly recommend you check out cosmo for your usecase. Cosmopolitan, and/or Actually Portable Executable (APE for short) is a project to compile a single binary in such a way that is is extremely portable, and that single binary can be copied across multiple operating systems and it will still just run. It supports, windows, linux, mac, and a few BSD's.

https://cosmo.zip/pub/cosmos/bin/ — this is where you can download precompiled binaries of certain things using cosmo.

From my testing, the APE version of python works great, and is only 34 megabytes, + 12 kilobytes for the ape elf interpreter.

In addition to python, cosmopolitan also has precompiled binaries of:

Janet 2.5 MB
Berry 4.0 MB
Python 34 MB
Php 11 MB
Lua 2.1 MB
Bash 5.1 MB

And a few more, like tclsh, zsh, dash or emacs (53 MB), which I'm pretty sure can be used as an emacs lisp intepreter.

And it should be noted these may require the ape elf interpeter, which is 12 kilobytes, or the ape assimilate program, which is 476 kilobytes.

EDIT: It also looks like there is an APE version of perl, and the full executable is 24 MB.

EDIT again: I found even more APE/cosmo binaries:

quickjs (javascript) 2.5 MB
lisp 20K