# Node CLI

### **Introduction**[​](https://docs.multiversx.com/validators/node-cli#introduction) <a href="#introduction" id="introduction"></a>

The **Command Line Interface** of the **Node** and its associated **Tools** is described at the following locations:

* Node
* SeedNode
* Keygenerator
* TermUI
* Logviewer

{% hint style="warning" %}
Links will be released when testnet phase starts
{% endhint %}

### **Examples**[​](https://docs.multiversx.com/validators/node-cli#examples) <a href="#examples" id="examples"></a>

To launch an Observer Node, use the command:

```
./node --rest-api-interface=localhost:8080 \
 --log-save --log-level=*:DEBUG --log-logger-name \
 --destination-shard-as-observer=0 --start-in-epoch\
 --validator-key-pem-file=observer0.pem
```

To start a Node as a Metachain Observer, use the command:

```
./node --rest-api-interface=localhost:8080 \
 --use-log-view --log-save --log-level=*:DEBUG --log-logger-name \
 --destination-shard-as-observer=metachain --start-in-epoch\
 --validator-key-pem-file=observerMetachain.pem
```