---
title: append
framework: system
role: symbol
role_heading: Type Property
path: system/filedescriptor/openoptions/append
---

# append

Indicates that each write operation appends to the file.

## Declaration

```swift
static var append: FileDescriptor.OpenOptions { get }
```

## Mentioned in

Adopting Swift File Options

## Discussion

Discussion If this option is specified, each time you write to the file, the new data is written at the end of the file, after all existing file data. The corresponding C constant is O_APPEND.

## See Also

### Specifying Options

- [closeOnExec](system/filedescriptor/openoptions/closeonexec.md)
- [create](system/filedescriptor/openoptions/create.md)
- [eventOnly](system/filedescriptor/openoptions/eventonly.md)
- [exclusiveCreate](system/filedescriptor/openoptions/exclusivecreate.md)
- [exclusiveLock](system/filedescriptor/openoptions/exclusivelock.md)
- [noFollow](system/filedescriptor/openoptions/nofollow.md)
- [nonBlocking](system/filedescriptor/openoptions/nonblocking.md)
- [sharedLock](system/filedescriptor/openoptions/sharedlock.md)
- [symlink](system/filedescriptor/openoptions/symlink.md)
- [truncate](system/filedescriptor/openoptions/truncate.md)