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Document use of atomic wrapper (#781) 

Document how to use `sponge` to atomic update textfiles.
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Ben Kochie 2018-02-27 19:46:01 +01:00 committed by GitHub
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text_collector_examples/README.md
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These scripts are examples to be used with the Node Exporter Textfile These scripts are examples to be used with the Node Exporter Textfile
Collector. Collector.
To use these scripts, we recommend using a `sponge` to atomically write the output.
<collector_script> | sponge <output_file>
Sponge comes from [moreutils](https://joeyh.name/code/moreutils/)
* [brew install moreutils](http://brewformulas.org/Moreutil)
* [apt install moreutils](https://packages.debian.org/search?keywords=moreutils)
For more information see: For more information see:
https://github.com/prometheus/node_exporter#textfile-collector https://github.com/prometheus/node_exporter#textfile-collector