Why might the below bash commands give me an error on a Jenkins JNLP slave in Kubernetes cluster? Each work on a local machine.

Error: Syntax error: redirection unexpected

IFS='/' read -r -a branch <<< "${1}"

Error: Syntax error: "(" unexpected (expecting "}"):


Environment Details


I cannot say this is a the best answer so I do hope someone can provide a better clarification.

It seems the default shell for sh() in Jenkins is Bourne. By updating the sh() with the correct shell this allows the below usage:

    # Use it.

This doesn't resolve the the redirection error. Also I would think by updating the default shell in the image with chsh -s /bin/bash I wouldn't need to set it but I still do.

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