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In Unix-like operating systems, unlink is a system call and a command line utility to delete files. The program directly interfaces the system call, which removes the file name and (but not on GNU systems) directories like rm and rmdir. [1] If the file name was the last hard link to the file, the file itself is deleted as soon as no program has ...
allows a user to list the contents of the AFS directory, examine the ACL associated with the directory and access subdirectories. Insert (i) allows a user to add new files or subdirectories to the directory. Delete (d) allows a user to remove files and subdirectories from the directory. Administer (a) allows a user to change the ACL for the ...
Task-runners like gulp and Grunt are built on Node.js rather than npm because the basic npm scripts are inefficient when executing multiple tasks. Even though some developers prefer npm scripts because they can be simple and easy to implement, there are numerous ways where gulp and Grunt seem to have an advantage over each other, and the default provided scripts. [11]
The idea behind tmpfs is similar in concept to a RAM disk, in that both provide a file system stored in volatile memory; however, the implementations are different. While tmpfs is implemented at the logical file system layer, a RAM disk is implemented at the physical file system layer. In other words, a RAM disk is a virtual block device with a ...
The native file systems of Unix-like systems also support arbitrary directory hierarchies, as do, Apple's Hierarchical File System and its successor HFS+ in classic Mac OS, the FAT file system in MS-DOS 2.0 and later versions of MS-DOS and in Microsoft Windows, the NTFS file system in the Windows NT family of operating systems, and the ODS-2 ...
An inode may have no links. An inode without links represents a file with no remaining directory entries or paths leading to it in the filesystem. A file that has been deleted or lacks directory entries pointing to it is termed an 'unlinked' file. Such files are removed from the filesystem, freeing the occupied disk space for reuse.
OverlayFS supports whiteouts and opaque directories in the upper filesystem to allow file and directory deletion. [ 8 ] OverlayFS does not support renaming files without performing a full copy-up of the file; however, renaming directories in an upper filesystem has limited support.
Copy-on-write (COW), also called implicit sharing [1] or shadowing, [2] is a resource-management technique [3] used in programming to manage shared data efficiently. Instead of copying data right away when multiple programs use it, the same data is shared between programs until one tries to modify it.