What shell does GitHub Actions use?

Question

If I have something like this in a job on GitHub Actions as part of my workflow,

run: |
  echo this >> that
  echo the other

what shell does GitHub Actions use?

GitHub Actions uses different shells depending on the OS that is mentioned in the runs-on field. You can refer to this article to learn more about shells. If this doesn't answer your question, please add more detail by editing your question. — Ajay
– Ajay, Commented Nov 21, 2024 at 3:34
@Ajay I don't normally read dev.to, but that blog is pretty solid. — Evan Carroll
– Evan Carroll, Commented Nov 25, 2024 at 3:00

Evan Carroll · Accepted Answer · 2024-11-25 02:12:36Z

0

Default Shells for Windows, and non-Windows

On Windows it sources pwsh.
On other platforms it sources an sh derivative, but bash firstly if the runner provides it.

Source: The Runner's ScriptHandler.cs

answered Nov 25, 2024 at 2:12

Evan Carroll

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