How to build a multiline shell text script on stage on the yaml file to perform it on azure VM

Question

Hi community,

I'm building a github action to upload jar file on Azure linux VM.
I'm using az vm run-command invoke command ( link ) to perform download jar file on the Azure linux VM.

My piece of bash text script in the stage is the followed:

      - name: Bash commands
        shell: bash
        run: |
          # Script to deploy app      
          az vm run-command invoke -g ${{ secrets.AZURE_RG }} -n ${{vars.VIRTUAL_MACHINE_ID_02}} --command-id RunShellScript --scripts 'cd /tmp && curl -O -J -L -H "Accept: application/vnd.github+json" -H "Authorization: Bearer $1" -H "X-GitHub-Api-Version: 2022-11-28" $2' --parameters ${{secrets.GIT_CICD_TOKEN}} ${{env.ARTIFACT_URL}}

As you can see before of the curl download command I have concatenated another command inline with && and the script is working fine as below:

--scripts 'cd /tmp && curl -O -J -L -H "Accept: application/vnd.github+json" -H "Authorization: Bearer $1" -H "X-GitHub-Api-Version: 2022-11-28" $2'

Could you tell me the right syntax to have a script commands multiline in the stage to be performed by Azure agent present in Azure VM ?

Thanks

Answer 1

Hello, @Galgani, Stefano ! Let me know in the comments if I'm missing something but there are two special characters you can use for multiline commands depending on the environment.

How do I create multiline shell scripts with Azure commands?

When entering multi-line commands, you'll use "\" for Bash and "`" for PowerShell. Since this is Bash, you'll use "\" before starting a new line.

Edit: Specific to GitHub Actions, you may need to use > (Folded Block Scalar) which converts new lines into spaces.

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