github actions environment variables

GitHub Actions Environment Variables

Can I access environment variables set in a previous step?

Yes, you can access environment variables set in a previous step within the same job using the ${{ steps.<step-id>.outputs.<output-name> }}</output-name></step-id> syntax. For example, if you set an environment variable named MY_VAR in a step with the ID my-step, you can access it in a subsequent step as follows:

<code>echo "Value of MY_VAR: ${{ steps.my-step.outputs.MY_VAR }}"</code>

Are environment variables available to all jobs in a workflow?

By default, environment variables are not shared between jobs in a workflow. Each job has its own isolated environment. However, you can explicitly share environment variables between jobs using the env keyword in the jobs section of your workflow file. For example:

<code>jobs:
  job1:
    env:
      MY_VAR: "value"
  job2:
    steps:
      - echo "Value of MY_VAR: ${{ env.MY_VAR }}"</code>

How can I set environment variables for a specific job or workflow?

You can set environment variables for a specific job or workflow using the env keyword in the respective job or workflow section of your workflow file. For a job, you can set environment variables as follows:

<code>jobs:
  my-job:
    env:
      MY_VAR: "value"</code>

For a workflow, you can set environment variables as follows:

<code>jobs:
  my-job:
    env:
      MY_VAR: "value"
  another-job:
    steps:
      - echo "Value of MY_VAR: ${{ env.MY_VAR }}"</code>

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