# Architecture
> Operating system CPU architecture.
## Usage
```javascript
var ARCH = require( '@stdlib/os/arch' );
```
#### ARCH
Operating system CPU architecture.
```javascript
console.log( ARCH );
// =>
```
## Examples
```javascript
var ARCH = require( '@stdlib/os/arch' );
if ( ARCH === 'arm' || ARCH === 'arm64' ) {
console.log( 'Running on ARM...' );
} else {
console.log( 'Running on something else...' );
}
```
* * *
## CLI
### Usage
```text
Usage: arch [options]
Options:
-h, --help Print this message.
-V, --version Print the package version.
```
### Examples
```bash
$ arch
```