The Unix file system (UFS) is a family of file systems supported by many Unix and Unix-like operating systems. It is a distant descendant of the original...

In Unix and operating systems inspired by it, the file system is considered a central component of the operating system. It was also one of the first parts...

The seven standard Unix file types are regular, directory, symbolic link, FIFO special, block special, character special, and socket as defined by POSIX...

systems, aimed to run on modern Linux and other Unix-like operating systems. It is capable of representing file systems in two ways: MapV mode: files...

In Unix and Unix-like computer operating systems, a file descriptor (FD, less frequently fildes) is a process-unique identifier (handle) for a file or...

labels with file system creation and extraction programs, but no kernel support exists. System V Release 4, and some other Unix systems, retrofitted...

Unix (/ˈjuːnɪks/ , YOO-niks; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T...

In Unix-like operating systems, a device file, device node, or special file is an interface to a device driver that appears in a file system as if it...

Tanenbaum in the 1980s and aimed to replicate the structure of the Unix File System while omitting complex features, and was intended to be a teaching...

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. The use of a...

which system resources a user can access. The password file maps textual user names to UIDs. UIDs are stored in the inodes of the Unix file system, running...

The file command is a standard program of Unix and Unix-like operating systems for recognizing the type of data contained in a computer file. The original...

usage) is a standard Unix program used to estimate file space usage—space used under a particular directory or files on a file system. A Windows commandline...

Unix version 1, along with the chmod system call. As systems grew in number and types of users, access-control lists were added to many file systems in...

originated as the system time of Unix operating systems. It has come to be widely used in other computer operating systems, file systems, programming languages...

software interface for Unix and Unix-like computer operating systems that lets non-privileged users create their own file systems without editing kernel...

on Unix-like file systems are defined in the POSIX.1-2017 standard, which uses three scopes or classes known as owner, group, and others. When a file is...

Unix System V (pronounced: "System Five") is one of the first commercial versions of the Unix operating system. It was originally developed by AT&T and...

(abbreviation for disk free) is a standard Unix command used to display the amount of available disk space for file systems on which the invoking user has appropriate...

A Unix shell is a command-line interpreter or shell that provides a command line user interface for Unix-like operating systems. The shell is both an...

mv is a Unix command that moves one or more files or directories from one place to another. If both filenames are on the same filesystem, this results...

command on Unix and Unix-like operating systems used to remove objects such as computer files, directories and symbolic links from file systems and also...

byte-range advisory Network Lock Manager (NLM) protocol (added to support UNIX System V file locking APIs) the remote quota-reporting (RQUOTAD) protocol, which...

Haiku operating system. Byte File System (BFS) - file system used by z/VM for Unix applications Btrfs – is a copy-on-write file system for Linux announced...

the layout of Unix-like systems. It has been made popular by its use in Linux distributions, but it is used by other Unix-like systems as well. It is...

is a Unix system call that returns file attributes about an inode. The semantics of stat() vary between operating systems. As an example, Unix command...

In computing, cp is a command in various Unix and Unix-like operating systems for copying files and directories. The command has three principal modes...

result of a faulty file transfer, a disk error or non-malicious meddling. The md5sum program is included in most Unix-like operating systems or compatibility...

Remote File Sharing (RFS) is a Unix operating system component for sharing resources, such as files, devices, and file system directories, across a network...

(index node) is a data structure in a Unix-style file system that describes a file-system object such as a file or a directory. Each inode stores the...