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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 symbolic link (also symlink or soft link) is a file whose purpose is to point to a file or directory (called the "target") by specifying a path thereto. [ 1 ] Symbolic links are supported by POSIX and by most Unix-like operating systems , such as FreeBSD , Linux , and macOS .
A symbolic link is a reference to another file. This special file is stored as a textual representation of the referenced file's path (which means the destination may be a relative path, or may not exist at all). A symbolic link is marked with an l (lower case L) as the first letter of the mode string, e.g. in this abbreviated ls -l output: [5]
It can be manipulated using several calls from the C header file linux/debugfs.h, which include: debugfs_create_file – for creating a file in the debug filesystem. debugfs_create_dir – for creating a directory inside the debug filesystem. debugfs_create_symlink – for creating a symbolic link inside the debug filesystem.
An NTFS symbolic link is not the same as a Windows shortcut file, which is a regular file. The latter may be created on any filesystem (such as the earlier FAT32 ), may contain metadata (such as an icon to display when the shortcut is viewed in Remove links), and is not transparent to applications.
lsattr — List file attributes on a Linux file system. lsmod — Display the currently loaded modules, their sizes and their dependencies. lspci — List PCI devices. lsusb — List USB hosts/devices. makedevs — Create a range of special files as specified in a device table. mcookie — Generate a 128-bit strong random number.
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The filesystem appears as one rooted tree of directories. [1] Instead of addressing separate volumes such as disk partitions, removable media, and network shares as separate trees (as done in DOS and Windows: each drive has a drive letter that denotes the root of its file system tree), such volumes can be mounted on a directory, causing the volume's file system tree to appear as that directory ...