lix/src/nix/flake-update.md

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R""(
# Examples
* Recreate the lock file (i.e. update all inputs) and commit the new
lock file:
```console
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# nix flake update --commit-lock-file
* Updated 'nix': 'github:NixOS/nix/9fab14adbc3810d5cc1f88672fde1eee4358405c' -> 'github:NixOS/nix/8927cba62f5afb33b01016d5c4f7f8b7d0adde3c'
* Updated 'nixpkgs': 'github:NixOS/nixpkgs/3d2d8f281a27d466fa54b469b5993f7dde198375' -> 'github:NixOS/nixpkgs/a3a3dda3bacf61e8a39258a0ed9c924eeca8e293'
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warning: committed new revision '158bcbd9d6cc08ab859c0810186c1beebc982aad'
```
# Description
This command recreates the lock file of a flake (`flake.lock`), thus
updating the lock for every unlocked input (like `nixpkgs`) to its
current version. This is equivalent to passing `--recreate-lock-file`
to any command that operates on a flake. That is,
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```console
# nix flake update
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# nix build
```
is equivalent to:
```console
# nix build --recreate-lock-file
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```
)""