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docs: Add some doc about ENV config

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See #2090
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Bjørn Erik Pedersen 2016-04-18 18:44:51 +02:00
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6
docs/content/overview/configuration.md
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@ -25,6 +25,12 @@ then look for a `config.yaml` file, followed by a `config.json` file.
The config file is a site-wide config. The config file provides directions to
hugo on how to build the site as well as site-wide parameters and menus.
Site configuration can also be set as environment variables in your operating system. The command below will work on *nix systems and overrides the site title. Note that all the variable names must be prefixed with "HUGO_".
```bash
env HUGO_TITLE="Some Title" hugo
```
## Examples
The following is an example of a typical yaml config file: