this post was submitted on 04 Oct 2024
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Hi, I'm trying to get SCALE to work but I'm so confused by what they mean by PATH and I'm stuck.

https://github.com/spectral-compute/scale-docs/blob/master/docs/manual/how-to-use.md

I'm at the CMAKE step.

This is the official guide I'm following. I do understand what they mean by SCALE_PATH though as that is clearly explained but PATH is just very vague to me or I'm just misunderstanding it completely.

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So I don't know how much you know about the shell, but the way that the linux command line works is that there are a set of variables, called environment variables, which dictate so me behavior of the shell. For example, $PATH variable, refers to what directories to search through, when you try to execute a program in your shell.

The documentation you linked, wants you to create a custom shell variable, called SCALE_PATH, consisting of a folder path, which contains the compiled binaries/programs of scale you want to run.

This command: export PATH="${SCALE_PATH}/bin:$PATH"

temporarily edits your PATH variable to add that folder with the scale programs you want to run to your path, enabling you to execute them from your shell.