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43 lines
788 B
Markdown
43 lines
788 B
Markdown
---
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title: getenv
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description: Returns the value of an environment variable, or an empty string if the environment variable is not set.
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date: 2017-02-01
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publishdate: 2017-02-01
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lastmod: 2021-11-26
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categories: [functions]
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menu:
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docs:
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parent: "functions"
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keywords: []
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signature: ["os.Getenv VARIABLE", "getenv VARIABLE"]
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workson: []
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hugoversion:
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relatedfuncs: []
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deprecated: false
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aliases: []
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---
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Examples:
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```go-html-template
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{{ os.Getenv "HOME" }} --> /home/victor
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{{ os.Getenv "USER" }} --> victor
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```
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You can pass values when building your site:
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```bash
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MY_VAR1=foo MY_VAR2=bar hugo
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OR
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export MY_VAR1=foo
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export MY_VAR2=bar
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hugo
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```
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And then retrieve the values within a template:
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```go-html-template
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{{ os.Getenv "MY_VAR1" }} --> foo
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{{ os.Getenv "MY_VAR2" }} --> bar
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```
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