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R""(
# Examples
* Get the build log of GNU Hello:
```console
# nix log nixpkgs#hello
```
* Get the build log of a specific store path:
```console
# nix log /nix/store/lmngj4wcm9rkv3w4dfhzhcyij3195hiq-thunderbird-52.2.1
```
* Get a build log from a specific binary cache:
```console
# nix log --store https://cache.nixos.org nixpkgs#hello
```
# Description
This command prints the log of a previous build of the derivation
*installable* on standard output.
Nix looks for build logs in two places:
* In the directory `/nix/var/log/nix/drvs`, which contains logs for
locally built derivations.
* In the binary caches listed in the `substituters` setting. Logs
should be named `<cache>/log/<base-name-of-store-path>`, where
`store-path` is a derivation,
e.g. `https://cache.nixos.org/log/dvmig8jgrdapvbyxb1rprckdmdqx08kv-hello-2.10.drv`.
For non-derivation store paths, Nix will first try to determine the
deriver by fetching the `.narinfo` file for this store path.
)""
|
