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...

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

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...

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...

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

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...

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...

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...

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...

(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...

Unix epoch. For example, at midnight on January 1 2010, Unix time was 1262304000. Unix time originated as the system time of Unix operating systems....

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

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 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...

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...

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...

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...

"Everything is a file" is an approach to interface design in Unix derivatives. While this turn of phrase does not as such figure as a Unix design principle...

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...

widely available in the early 1990s, getting a new file system deployed for Unix-like operating systems was more difficult, so the one- to two-year delay...

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...

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...

The system utility fsck (file system check) is a tool for checking the consistency of a file system in Unix and Unix-like operating systems, such as Linux...

filesystem in Unix-like operating systems that presents information about processes and other system information in a hierarchical file-like structure...

(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...

fstab (after file systems table) is a system file commonly found in the directory /etc on Unix and Unix-like computer systems. In Linux, it is part of...