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Merge pull request #4202 from hercules-ci/nix-shell-doc

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Nix shell doc
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Eelco Dolstra 2020-10-30 11:36:24 +01:00 committed by GitHub
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6
doc/manual/src/command-ref/nix-shell.md
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@ -32,7 +32,7 @@ URL of a tarball that will be downloaded and unpacked to a temporary
location. The tarball must include a single top-level directory
containing at least a file named `default.nix`.
If the derivation defines the variable `shellHook`, it will be evaluated
If the derivation defines the variable `shellHook`, it will be run
after `$stdenv/setup` has been sourced. Since this hook is not executed
by regular Nix builds, it allows you to perform initialisation specific
to `nix-shell`. For example, the derivation attribute
@ -41,10 +41,12 @@ to `nix-shell`. For example, the derivation attribute
shellHook =
''
echo "Hello shell"
export SOME_API_TOKEN="$(cat ~/.config/some-app/api-token)"
'';
```
will cause `nix-shell` to print `Hello shell`.
will cause `nix-shell` to print `Hello shell` and set the `SOME_API_TOKEN`
environment variable to a user-configured value.
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