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https://github.com/nushell/nushell
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38 lines
679 B
Markdown
38 lines
679 B
Markdown
---
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title: with-env
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layout: command
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version: 0.59.0
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---
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Runs a block with an environment variable set.
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## Signature
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```> with-env (variable) (block)```
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## Parameters
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- `variable`: the environment variable to temporarily set
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- `block`: the block to run once the variable is set
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## Examples
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Set the MYENV environment variable
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```shell
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> with-env [MYENV "my env value"] { $env.MYENV }
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```
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Set by primitive value list
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```shell
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> with-env [X Y W Z] { $env.X }
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```
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Set by single row table
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```shell
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> with-env [[X W]; [Y Z]] { $env.W }
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```
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Set by row(e.g. `open x.json` or `from json`)
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```shell
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> echo '{"X":"Y","W":"Z"}'|from json|with-env $in { echo $env.X $env.W }
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```
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