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# write(to:atomically:)

Writes the contents of the receiver to the location specified by a given URL.

```
func write(to url: URL, atomically: Bool) -> Bool
```

## Return Value

<doc://com.apple.documentation/documentation/Swift/true> if the location is written successfully, otherwise <doc://com.apple.documentation/documentation/Swift/false>.

## Discussion

If `atomically` is <doc://com.apple.documentation/documentation/Swift/true>, the receiver is written to an auxiliary location, and then the auxiliary location is renamed to `aURL`. If `atomically` is <doc://com.apple.documentation/documentation/Swift/false>, the receiver is written directly to `aURL`. The <doc://com.apple.documentation/documentation/Swift/true> option guarantees that `aURL`, if it exists at all, won’t be corrupted even if the system should crash during writing.

The `atomically` parameter is ignored if `aURL` is not of a type that can be accessed atomically.

## See Also

[`-  writeToURL:atomically:encoding:error:`](/documentation/Foundation/NSString/write(to:atomically:encoding:))

Writes the contents of the receiver to the URL specified by `url` using the specified encoding.


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