# Determine the version of the CodeDeploy agent
<a name="codedeploy-agent-operations-version"></a>

You can determine the version of the CodeDeploy agent running on your instance in two ways.

First, starting with version 1.0.1.854 of the CodeDeploy agent, you can view the version number in a `.version` file on the instance. The following table shows the location and sample version string for each of the supported operating systems.


| Operating system | File location | Sample agent\$1version string | 
| --- | --- | --- | 
| Amazon Linux and Red Hat Enterprise Linux (RHEL) | /opt/codedeploy-agent/.version | OFFICIAL\$11.0.1.854\$1rpm | 
| Ubuntu Server | /opt/codedeploy-agent/.version | OFFICIAL\$11.0.1.854\$1deb | 
| Windows Server | C:\$1ProgramData\$1Amazon\$1CodeDeploy\$1.version | OFFICIAL\$11.0.1.854\$1msi | 

Second, you can run a command on an instance to determine the version of the CodeDeploy agent.

**Topics**
+ [Determine the version on Amazon Linux or RHEL](#codedeploy-agent-operations-version-linux)
+ [Determine the version on Ubuntu Server](#codedeploy-agent-operations-version-ubuntu)
+ [Determine the version on Windows Server](#codedeploy-agent-operations-version-windows)

## Determine the version on Amazon Linux or RHEL
<a name="codedeploy-agent-operations-version-linux"></a>

Sign in to the instance and run the following command:

```
sudo yum info codedeploy-agent
```

## Determine the version on Ubuntu Server
<a name="codedeploy-agent-operations-version-ubuntu"></a>

Sign in to the instance and run the following command:

```
sudo dpkg -s codedeploy-agent
```

## Determine the version on Windows Server
<a name="codedeploy-agent-operations-version-windows"></a>

Sign in to the instance and run the following command:

```
sc qdescription codedeployagent
```