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In CP/M, the meaning is inverted: creating or modifying a file clears the archive bit, and the bit is set when the file is backed up. Backup software may provide the option to do a full backup while clearing archive bits – that is, to back up all files regardless of their archive bit status, and to clear the archive bit for all files ...
Linux, FreeBSD and NetBSD [citation needed] OverlayFS is a union mount filesystem implementation for Linux. It combines multiple different underlying mount points into one, resulting in a single directory structure that contains underlying files and sub-directories from all sources.
NTFS-3G supports partial NTFS journaling, so if an unexpected computer failure leaves the file system in an inconsistent state, the volume can be repaired. As of 2009, a volume having an unclean journal file is recovered and mounted by default. The ‘norecover’ mount option can be used to disable this behavior. [13]
A hard link "points" to an MFT record. That target record will be the record for a "regular" file, such as a text file or executable (assuming the NTFS volume is in a normal "healthy" state). Compare with a typical Unix file system, where a hard link points to an inode. As in such file systems, an NTFS hard link cannot point to a directory.
File synchronization (or syncing) in computing is the process of ensuring that computer files in two or more locations are updated via certain rules. In one-way file synchronization , also called mirroring , updated files are copied from a source location to one or more target locations, but no files are copied back to the source location.
Online folder sync services can be used for backup purposes. However, some Online Folder Sync services may not provide a safe Online Backup. If a file is accidentally locally corrupted or deleted, it depends on the versioning features of a Folder Sync service, whether this file will still be retrievable.
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Commonly done by calculating and storing hash function digests of files to detect if two files with different names, edit dates, etc., have identical contents. Programs which do not support it, will behave as if the originally-named file/directory has been deleted and the newly named file/directory is new and transmit the "new" file again.