# write(toFile:atomically:updateFilenames:) Writes a file wrapper’s contents to a given file-system node. ``` func write(toFile path: String, atomically atomicFlag: Bool, updateFilenames updateFilenamesFlag: Bool) -> Bool ``` ## Parameters `path` Pathname of the file-system node to which the receiver’s contents are written. `atomicFlag` to write the file safely so that: - An existing file is not overwritten - The method fails if the file cannot be written in its entirety to overwrite an existing file and ignore incomplete writes. `updateFilenamesFlag` to update the receiver’s filenames (its filename and—for directory file wrappers—the filenames of its sub–file wrappers) be changed to the filenames of the corresponding nodes in the file system, after a successful write operation. Use this in Save or Save As operations. to specify that the receiver’s filenames not be updated. Use this in Save To operations. ## Return Value when the write operation is successful, otherwise. ## Discussion Beginning with OS X v10.6, the preferred method of referring to files is with a `file://` URL. Therefore, this method has been deprecated in favor of [`write(to:options:originalContentsURL:)`](/documentation/Foundation/FileWrapper/write(to:options:originalContentsURL:)). ## See Also [`filename`](/documentation/Foundation/FileWrapper/filename) The filename of the file wrapper object --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)