![]() ![]() File Explorer in Windows can show the seven mentioned attributes but cannot set or clear the System attribute. In DOS, OS/2 and Windows, the attrib command in cmd.exe and can be used to change and display the four traditional file attributes. Temporary (T): The file is used for temporary storage.Sparse (P): The file is a sparse file, i.e., its contents are partially empty and non-contiguous.Offline (O): The file data is physically moved to offline storage (Remote Storage).Reparse Point (L): The file or directory has an associated re-parse point, or is a symbolic link.Directory (D): The entry is a subdirectory, containing file and directory entries of its own.Other attributes that are displayed in the "Attributes" column of Windows Explorer include: Not Content-Indexed (I): When set, Indexing Service or Windows Search do not include the hosting file in their indexing operation.For more information, see NTFS § Encryption. ![]() ![]() ![]() Encrypted (E): When set, Windows encrypts the hosting file upon storage to prevent unauthorized access.For more information, see NTFS § File compression. Compressed (C): When set, Windows compresses the hosting file upon storage.Īs new versions of Windows came out, Microsoft has added to the inventory of available attributes on the NTFS file system, including but not limited to: Read-only attributes on folders are usually ignored, being used for another purpose. Upon opening the file, file system API usually does not grant write permission to the requesting application, unless the application explicitly requests it. Read-only (R): When set, indicates that a file should not be altered.MS-DOS commands like dir and Windows apps like File Explorer do not show system files by default even when hidden files are shown, unless asked to do so. MS-DOS and Microsoft Windows use it to mark important system files. System (S): When set, indicates that the hosting file is a critical system file that is necessary for the computer to operate properly.MS-DOS commands like dir and Windows apps like File Explorer do not show hidden files by default, unless asked to do so. Hidden (H): When set, indicates that the hosting file is hidden.Backup software then has the duty of clearing it upon a successful full or incremental backup (not a differential one). Windows' file system sets this attribute on any file that has changed. Archive (A): When set, it indicates that the hosting file has changed since the last backup operation.Traditionally, in DOS and Microsoft Windows, files and folders accepted four attributes: In addition to files, folders, volumes and other file system objects may have attributes. Attributes are considered distinct from other metadata, such as dates and times, filename extensions or file system permissions. Each attribute can have one of two states: set and cleared. Where attribute data must be stored along with other control structures. The availability of most file attributes depends on support by the underlying filesystem (such as FAT, NTFS, ext4) Typical file attributes may, for example, indicate or specify whether a file is visible, modifiable, compressed, or encrypted. File attributes are a type of meta-data that describe and may modify how files and/or directories in a filesystem behave. ![]()
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