# FilePermissions The access permissions for a file. ``` @frozen struct FilePermissions ``` ## Overview The following example creates an instance of the `FilePermissions` structure from a raw octal literal and compares it to a file permission created using named options: ``` let perms = FilePermissions(rawValue: 0o644) perms == [.ownerReadWrite, .groupRead, .otherRead] // true ``` ## Topics ### Owner Permissions [`ownerRead`](/documentation/System/FilePermissions/ownerRead) Indicates that the owner has read-only permission. [`ownerWrite`](/documentation/System/FilePermissions/ownerWrite) Indicates that the owner has write-only permission. [`ownerExecute`](/documentation/System/FilePermissions/ownerExecute) Indicates that the owner has execute-only permission. [`ownerReadWrite`](/documentation/System/FilePermissions/ownerReadWrite) Indicates that the owner has read-write permission. [`ownerReadExecute`](/documentation/System/FilePermissions/ownerReadExecute) Indicates that the owner has read-execute permission. [`ownerWriteExecute`](/documentation/System/FilePermissions/ownerWriteExecute) Indicates that the owner has write-execute permission. [`ownerReadWriteExecute`](/documentation/System/FilePermissions/ownerReadWriteExecute) Indicates that the owner has read, write, and execute permission. ### Group Permissions [`groupRead`](/documentation/System/FilePermissions/groupRead) Indicates that the group has read-only permission. [`groupWrite`](/documentation/System/FilePermissions/groupWrite) Indicates that the group has write-only permission. [`groupExecute`](/documentation/System/FilePermissions/groupExecute) Indicates that the group has execute-only permission. [`groupReadWrite`](/documentation/System/FilePermissions/groupReadWrite) Indicates that the group has read-write permission. [`groupReadExecute`](/documentation/System/FilePermissions/groupReadExecute) Indicates that the group has read-execute permission. [`groupWriteExecute`](/documentation/System/FilePermissions/groupWriteExecute) Indicates that the group has write-execute permission. [`groupReadWriteExecute`](/documentation/System/FilePermissions/groupReadWriteExecute) Indicates that the group has read, write, and execute permission. ### Other Permissions [`otherRead`](/documentation/System/FilePermissions/otherRead) Indicates that other users have read-only permission. [`otherWrite`](/documentation/System/FilePermissions/otherWrite) Indicates that other users have write-only permission. [`otherExecute`](/documentation/System/FilePermissions/otherExecute) Indicates that other users have execute-only permission. [`otherReadWrite`](/documentation/System/FilePermissions/otherReadWrite) Indicates that other users have read-write permission. [`otherReadExecute`](/documentation/System/FilePermissions/otherReadExecute) Indicates that other users have read-execute permission. [`otherWriteExecute`](/documentation/System/FilePermissions/otherWriteExecute) Indicates that other users have write-execute permission. [`otherReadWriteExecute`](/documentation/System/FilePermissions/otherReadWriteExecute) Indicates that other users have read, write, and execute permission. ### Special Permissions [`setUserID`](/documentation/System/FilePermissions/setUserID) Indicates that the file is executed as the owner. [`setGroupID`](/documentation/System/FilePermissions/setGroupID) Indicates that the file is executed as the group. [`saveText`](/documentation/System/FilePermissions/saveText) Indicates that executable’s text segment should be kept in swap space even after it exits. ### Interacting with C APIs [`init(rawValue:)`](/documentation/System/FilePermissions/init(rawValue:)) Create a strongly-typed file permission from a raw C value. [`rawValue`](/documentation/System/FilePermissions/rawValue) The raw C file permissions. [`CModeT`](/documentation/System/CModeT) The C `mode_t` type. ### Debugging [`description`](/documentation/System/FilePermissions/description) A textual representation of the file permissions. [`debugDescription`](/documentation/System/FilePermissions/debugDescription) A textual representation of the file permissions, suitable for debugging. ### Comparing File Permissions ### Encoding File Permissions ### Performing Set Operations --- 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)