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Comment by simonw | Hacker News Reader

I love the design of this!

    echo '### Hello world! :rocket:' >> $GITHUB_STEP_SUMMARY

Having this as an environment variable you can write to that is really clever, and makes it easy to generate these from other scripts (or Python commands etc) too.

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Small clarification, because I had the same misconception: $GITHUB_STEP_SUMMARY is just an env var containing the name of a file

Yeah https://docs.github.com/en/actions/using-workflows/workflow-... has some more details on this - it even suggests that if you want to delete the summary entirely you can do:

    rm $GITHUB_STEP_SUMMARY

Thanks, it was fuzzy at first to me as well.

The official description of $GITHUB_STEP_SUMMARY reveals a bit of the implementation details:

> The path on the runner to the file that contains job summaries from workflow commands. This file is unique to the current step and changes for each step in a job. For example, /home/rob/runner/_layout/_work/_temp/_runner_file_commands/step_summary_1cb22d7f-5663-41a8-9ffc-13472605c76c.

https://docs.github.com/en/actions/learn-github-actions/envi...

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