# deno_install

**One-line commands to install Deno on your system.**

| **Linux & Mac** | **Windows** |
|:---------------:|:-----------:|
| [![Build Status](https://travis-ci.com/denoland/deno_install.svg?branch=master)](https://travis-ci.com/denoland/deno_install) | [![Build status](https://ci.appveyor.com/api/projects/status/gtekeaf7r60xa896?branch=master&svg=true)](https://ci.appveyor.com/project/deno/deno-install) |

## Install Latest Version

**With Shell:**

```sh
curl -fsSL https://deno.land/x/install/install.sh | sh
```

**With PowerShell:**

```powershell
iwr https://deno.land/x/install/install.ps1 -useb | iex
```

## Install Specific Version

**With Shell:**

```sh
curl -fsSL https://deno.land/x/install/install.sh | sh -s v0.2.10
```

**With PowerShell:**

```powershell
iwr https://deno.land/x/install/install.ps1 -useb -outf install.ps1; .\install.ps1 v0.2.10
```

## Install via Package Manager

**With [Scoop](https://scoop.sh):**

```powershell
scoop install deno
```

**With [Homebrew](https://brew.sh/):**

```sh
brew install deno
```

## Install and Manage Multiple Versions

**With [asdf](https://asdf-vm.com) and [asdf-deno](https://github.com/asdf-community/asdf-deno):**

```sh
asdf plugin-add deno https://github.com/asdf-community/asdf-deno.git

asdf install deno 0.2.10

# Activate globally with:
asdf global deno 0.2.10

# Activate locally in the current folder with:
asdf local deno 0.2.10
```

## Environment Variables

- `DENO_INSTALL` - The directory in which to install Deno. This defaults to `$HOME/.deno`.
  One application of this is a system-wide Shell installation to [`/opt/deno`](https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch03s13.html):

  ```sh
  curl -fsSL https://deno.land/x/install/install.sh | DENO_INSTALL=/opt/deno sh -s v0.2.10
  ```

  Not yet supported in the PowerShell installer (#76).


## Compatibility

- The Shell installer can be used on Windows via the [Windows Subsystem for Linux](https://docs.microsoft.com/en-us/windows/wsl/about).
- The PowerShell installer can be used on Linux and Mac thanks to [PowerShell Core](https://docs.microsoft.com/en-us/powershell/scripting).

## Known Issues

### Running scripts is disabled

```
PS C:\> iwr https://deno.land/x/install/install.ps1 -useb -outf install.ps1; .\install.ps1 v0.2.10
.\install.ps1 : File C:\install.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:71
+ ... /x/install/install.ps1 -useb -outf install.ps1; .\install.ps1 v0.2.10
+                                                     ~~~~~~~~~~~~~
    + CategoryInfo          : SecurityError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : UnauthorizedAccess
```

**When does this issue occur?**

If your systems' [ExecutionPolicy](https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_execution_policies) is `Undefined` or `Restricted`.

**How can this issue be fixed?**

Allow scripts that are downloaded from the internet to be executed by setting the execution policy to `RemoteSigned`:

```powershell
Set-ExecutionPolicy RemoteSigned -Scope CurrentUser -Force
```