---
title: Set build commands per branch
description: Run different build commands on specific branches in your Cloudflare Pages project.
image: https://developers.cloudflare.com/dev-products-preview.png
---

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# Set build commands per branch

**Last reviewed:**  almost 4 years ago 

This guide will instruct you how to set build commands on specific branches. You will use the `CF_PAGES_BRANCH` environment variable to run a script on a specified branch as opposed to your Production branch. This guide assumes that you have a Cloudflare account and a Pages project.

## Set up

Create a `.sh` file in your project directory. You can choose your file's name, but we recommend you name the file `build.sh`.

In the following script, you will use the `CF_PAGES_BRANCH` environment variable to check which branch is currently being built. Populate your `.sh` file with the following:

Terminal window

```

# !/bin/bash


if [ "$CF_PAGES_BRANCH" == "production" ]; then

  # Run the "production" script in `package.json` on the "production" branch

  # "production" should be replaced with the name of your Production branch


  npm run production


elif [ "$CF_PAGES_BRANCH" == "staging" ]; then

  # Run the "staging" script in `package.json` on the "staging" branch

  # "staging" should be replaced with the name of your specific branch


  npm run staging


else

  # Else run the dev script

  npm run dev

fi


```

## Publish your changes

To put your changes into effect:

1. In the Cloudflare dashboard, go to the **Workers & Pages** page.  
[ Go to **Workers & Pages** ](https://dash.cloudflare.com/?to=/:account/workers-and-pages)
2. Select your Pages project.
3. Go to **Settings** \> **Build & deployments** \> **Build configurations** \> **Edit configurations**.
4. Update the **Build command** field value to `bash build.sh` and select **Save**.

To test that your build is successful, deploy your project.

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/pages/","name":"Pages"}},{"@type":"ListItem","position":3,"item":{"@id":"/pages/how-to/","name":"How to"}},{"@type":"ListItem","position":4,"item":{"@id":"/pages/how-to/build-commands-branches/","name":"Set build commands per branch"}}]}
```