Default shell for bitbucket pipeline

[Oleksandr Gavenko]

Help me understand which default shell is used in Bitbucket pipelines.

We defines Docker images with `step.image` and several steps in `script`.

Healthy conclusion is that each `script` line is sent to shell, defiled by Docket image which can vary.

I see that `.` / `source` operator is working for sh like-shells. That mean each `script` command reuses same sh session.

Is it correct that there is no predefined shell executors?

Is it correct that each line of step executed within same shell session?

[Linette · Accepted solution]

Each step runs in a separate docker container.

How the container behaves, and which shell it uses depends on the docker image used. Each line of script inside a step executes in the same shell session.

I hope that helps!