Alex Garcia

I think those need to be single-quotes rather than double in the echo command (at least on linux and osx)

Daniel Howe

You can also check this notebook: https://observablehq.com/@kotelnikov/observablehq-notebooks-building-and-compiling

Here the notebooks transformation process is splitted to two steps: code generation and compilation. The generated code can be used to check if cells should be updates, to create bundles etc