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If anyone uses this, please share. As a newb, I would love to see some real use examples to learn from.

Sure thing, I'm currently using it in docker as a lightweight way to set config files from environment variables. I'll put together a write up of how/why we are doing that and post the link in reply to this.

Just today I made a suggestion in a Github issue[0] to use sed for a similar use case. There, it was to generate an Amazon ECS task definition file from a CI tool's environment variables. Using this, populating the list of environment variables by looping through the output of env and including anything that matches a given prefix would be a breeze.

Thanks for the excellent tool!

[0]: https://github.com/1science/wercker-aws-ecs/issues/4#issueco...

Here's the write up. Let me know if there's anything unclear!

http://nextrevision.github.io/2015/sempl-templating-with-bas...

This is perfect! Thank you for taking the time to make this. It gave me a much better understanding of what sempl is, how to use it, and what it can be used for.

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