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substr Function
Note: This page is about Terraform 0.12 and later. For Terraform 0.11 and earlier, see 0.11 Configuration Language: Interpolation Syntax.
substr extracts a substring from a given string by offset and length.
substr(string, offset, length)
» Examples
> substr("hello world", 1, 4)
ello
The offset and length are both counted in unicode characters rather than bytes:
> substr("🤔🤷", 0, 1)
🤔