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The ln command is a standard Unix command utility used to create a hard link or a symbolic link (symlink) to an existing file or directory. [1] The use of a hard link allows multiple filenames to be associated with the same file since a hard link points to the inode of a given file, the data of which is stored on disk.
In computing, a hard link is a directory entry (in a directory-based file system) that associates a name with a file.Thus, each file must have at least one hard link. Creating additional hard links for a file makes the contents of that file accessible via additional paths (i.e., via different names or in different directori
The link utility is a Unix command line program that creates a hard link from an existing directory entry to a new directory entry. It does no more than call the link
The mathematical traits of hard links make the file system a limited type of directed acyclic graph, although the directories still form a tree, as they typically may not be hard-linked. (As originally envisioned in 1969, the Unix file system would in fact be used as a general graph with hard links to directories providing navigation, instead ...
Files with hard links in multiple directories have multiple reference items, one for each parent directory. Files with multiple hard links in the same directory pack all of the links' filenames into the same reference item. This was a design flaw that limited the number of same-directory hard links to however many could fit in a single tree block.
link: Filesystem Optional (XSI) Create a hard link to a file Version 1 AT&T UNIX ln: Filesystem Mandatory Link files Version 1 AT&T UNIX locale: Misc Mandatory Get locale-specific information localedef: Misc Mandatory Define locale environment logger: Shell programming Mandatory Log messages 4.3BSD logname: Misc Mandatory Return the user's ...
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ext2 was the default filesystem in several Linux distributions, including Debian and Red Hat Linux, until supplanted by ext3, which is almost completely compatible with ext2 and is a journaling file system. ext2 is still the filesystem of choice for flash-based storage media (such as SD cards and USB flash drives) [citation needed] because its ...