File SystemWrite file

Copy a file to another location

Use Bun.write() to copy a file to another location on disk. The first argument is a destination , like an absolute path or BunFile instance. The second argument

Write a file to stdout

Bun exposes stdout as a BunFile with the Bun.stdout property. Pass it as the destination to Bun.write() .

Write a file incrementally

Bun provides an API for incrementally writing to a file. Use it for large files, or when writing to a file over a long period of time.