# Set command variables

Setting these commonly used command variables makes it easier to run command-line examples on your local machine or in Cloud Shell.

Perform the following steps to set command variables.

1. Export the project using the following example:

   ```
   $ export PROJECT=project;export HOSTNAME=hostname;export ZONE=zone
   ```

   1. Set the **PROJECT** variable to your Google Cloud project ID.
   2. Set the **HOSTNAME** variable to the name of the master node in your Dataproc cluster.

      **Note:** The master name ends with an -m suffix.
   3. Set the **ZONE** variable to the zone of the instances in your Dataproc cluster.


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# Agent Instructions: Querying This Documentation

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```
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```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.