Bash or powershell command for deploying Nodejs in Azure Linux VM using Azure pipelines

I am trying to build CI/CD for a nodejs application using Azure pipeline to be deployed in Azure VM . I can see the build being successful but the deployment is not . Can anyone help me with bash command to start the node server.

The below is the yaml portion of deploy stage

- stage: Deploy
  displayName: Deploy stage
  dependsOn: Build
  condition: succeeded()
  jobs:

  - deployment: VMDeploy
    displayName: web
    environment:
      name: VMtest
      resourceType: VirtualMachine
      tags: web
    strategy:
        runOnce:
          deploy:
            steps:
            - script: echo my first deployment