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cheatsheet-tldr/tldr/nix-instantiate
2026-01-27 00:24:10 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# nix-instantiate
> Create store derivations from nix expressions.
> See also: `nix eval`.
> More information: <https://nix.dev/manual/nix/latest/command-ref/nix-instantiate.html>.
- Instantiate a store derivation from a Nix file:
`nix-instantiate {{path/to/file.nix}}`
- Evaluate an expression:
`nix-instantiate --eval {{[-E|--expr]}} {{expression}}`
- Evaluate with machine readable output:
`nix-instantiate --eval --xml {{[-E|--expr]}} {{expression}}`
- Raw output, output of the function must be a string:
`nix-instantiate --eval --raw {{[-E|--expr]}} {{expression}}`
- Evaluate a Nix expression from a specified file:
`nix-instantiate --eval {{path/to/file.nix}}`