nushell/docs/commands/let.md

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---
title: let
layout: command
version: 0.59.0
---
Create a variable and give it a value.
## Signature
```> let (var_name) (initial_value)```
## Parameters
- `var_name`: variable name
- `initial_value`: equals sign followed by value
## Examples
Set a variable to a value
```shell
> let x = 10
```
Set a variable to the result of an expression
```shell
> let x = 10 + 100
```
Set a variable based on the condition
```shell
> let x = if $false { -1 } else { 1 }
```