1) my product is confluence 5.7.3
2) my bitbucket-pipelines.yml setting

When run pipeline error mesage"bash: atlas-version: command not found" has display

I'm a new bee and i'm studying, so don't know why that message has displayed.
i thing below image config was problem but i can't fix it.
"image: atlassian/confluence-server:6.3-jdk8"
Please help me!