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Attrib changes or views the attributes of one or more files. It defaults to display the attributes of all files in the current directory. The file attributes available include read-only, archive, system, and hidden attributes. The command has the capability to process whole folders and subfolders of files and also process all files.
The initial version of the ATTRIB command for DOS was first included in version 3.0 of PC DOS, with functionality limited to changing the read-only attribute. [7] Subsequent versions allowed the read-only, hidden, system and archive bits to be set. [8]
In DOS systems, file directory entries include a Hidden file attribute which is manipulated using the attrib command. Using the command line command dir /ah displays the files with the Hidden attribute. In addition, there is a System file attribute that can be set on a file, which also causes the file to be hidden in directory listings.
Windows PowerShell, which has become a component of Windows 7 and later, features two commands that can read and write attributes: Get-ItemProperty and Set-ItemProperty. [10] To change an attribute on a file on Windows NT, the user must have appropriate file system permissions known as Write Attributes and Write Extended Attributes. [11]
The original File Allocation Table file system has a per-file all-user read-only attribute. NTFS implemented in Microsoft Windows NT and its derivatives, use ACLs [1] to provide a complex set of permissions. OpenVMS uses a permission scheme similar to that of Unix. There are four categories (system, owner, group, and world) and four types of ...
A specific command for clearing or setting the bit must be executed. On the other hand, whenever a file with a clear archive bit is modified (edited), or copied or moved to a new location, the operating system will set the archive bit on the target file.
For Steele personally, she said she would use an egg that she recently accidentally cracked — but only if it still had an intact membrane. Be sure to check eggs for cracks at the grocery store ...
CompactOS is an improved variant of WIMBoot from Windows 8.1, where system files could be stored in a compressed WIM image on a hidden disk partition, [22] and the WOF filter driver would decompress file contents from that WIM file; using alternate data streams instead of read-only WIM images allows CompactOS to recompress system files when ...