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function Deno.copyFileSync

Synchronously copies the contents and permissions of one file to another specified path, by default creating a new file if needed, else overwriting. Fails if target path is a directory or is unwritable.

Deno.copyFileSync("from.txt", "to.txt");

Requires allow-read permission on fromPath. Requires allow-write permission on toPath.


fromPath: string | URL
toPath: string | URL