What is the difference between export and "go env -w"

Question content

What exactly does "go env -w" do? I've skimmed this long proposal but haven't figured out the gist of it yet. Right now,

• Will it write such a setting anywhere in Go related configuration files?
• What is the difference between the two methods if I simply use export?
• If I use "go env -w", how do I unset it when I no longer need it?

By the way, what I'm asking about is "go env -w GOPRIVATE". What difference would it make if I did it either way.

Correct answer

Rungo help environment:

Environment variables take precedence. Therefore, if GOPRIVATE is set on your system, it will be used. If not, or if you unset it, the value you set with go env -w GOPRIVATE=xy will be used.

If you run go help env:

Therefore, you can cancel manually changed GOPRIVATE defaults by running go env -u GOPRIVATE.

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