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38 lines
788 B
Markdown
38 lines
788 B
Markdown
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# envsubst
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`envsubst` is a Go package for expanding variables in a string using `${var}` syntax.
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Includes support for bash string replacement functions.
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## Documentation
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[Documentation can be found on GoDoc][doc].
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## Supported Functions
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* `${var^}`
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* `${var^^}`
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* `${var,}`
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* `${var,,}`
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* `${var:position}`
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* `${var:position:length}`
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* `${var#substring}`
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* `${var##substring}`
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* `${var%substring}`
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* `${var%%substring}`
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* `${var/substring/replacement}`
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* `${var//substring/replacement}`
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* `${var/#substring/replacement}`
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* `${var/%substring/replacement}`
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* `${#var}`
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* `${var=default}`
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* `${var:=default}`
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* `${var:-default}`
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## Unsupported Functions
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* `${var-default}`
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* `${var+default}`
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* `${var:?default}`
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* `${var:+default}`
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[doc]: http://godoc.org/github.com/drone/envsubst
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