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...
17 KB (1,966 words) - 06:52, 12 March 2025
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...
16 KB (944 words) - 14:20, 13 April 2025
The Unix file types are the categories of file formats that a Unix-based system uses to provide context-sensitive behavior of file system items – all...
8 KB (967 words) - 01:28, 1 June 2025
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...
13 KB (1,189 words) - 23:54, 12 April 2025
Chmod (category Unix file system-related software)
originated in AT&T Unix version 1 and was exclusive to Unix and Unix-like operating systems until it was ported to other operating systems such as Windows...
15 KB (1,529 words) - 09:06, 16 April 2025
clone of SGI's fsn file manager for IRIX systems, aimed to run on modern Linux and other Unix-like operating systems. While not officially deprecated, the...
3 KB (285 words) - 16:29, 30 May 2025
space on file systems on which the user has read access. df is typically implemented using the statfs() or statvfs() system calls. The Single Unix Specification...
7 KB (897 words) - 21:00, 13 April 2025
labels with file system creation and extraction programs, but no kernel support exists. System V Release 4, and some other Unix systems, retrofitted...
145 KB (5,398 words) - 19:19, 26 June 2025
A Unix shell is a shell that provides a command-line user interface for a Unix-like operating system. A Unix shell provides a command language that can...
16 KB (1,678 words) - 11:12, 12 July 2025
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...
36 KB (3,375 words) - 06:11, 3 March 2025
User identifier (redirect from User identifier (unix))
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...
11 KB (1,477 words) - 08:37, 12 July 2025
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...
29 KB (3,072 words) - 03:35, 26 May 2025
Unix epoch. For example, at midnight on 1 January 2010, Unix time was 1262304000. Unix time originated as the system time of Unix operating systems....
51 KB (5,461 words) - 21:22, 22 June 2025
stat() is a Unix system call that queries the file system for metadata about a file (including special files such as directories). The metadata contains...
16 KB (908 words) - 16:35, 3 July 2025
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...
6 KB (613 words) - 15:52, 6 June 2025
executing in the same Unix or Unix-like operating system. The name Unix domain socket refers to the domain argument value AF_UNIX that is passed to the...
4 KB (477 words) - 12:38, 17 July 2025
Filesystem Hierarchy Standard (redirect from Unix FHS)
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...
26 KB (1,589 words) - 08:18, 20 July 2025
Filename extension (redirect from File name extension)
of the file system itself and may limit the length and format of the extension, while others, such as Unix file systems, the VFAT file system, and NTFS...
20 KB (2,736 words) - 03:23, 13 July 2025
Inode (category Unix file system technology)
(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...
21 KB (2,619 words) - 22:21, 26 June 2025
program on Unix and Unix-like operating systems used to display the beginning of a text file or piped data. The command syntax is: head [options] ⟨file_name⟩...
4 KB (319 words) - 08:45, 16 February 2025
Fsck (redirect from File system consistency check)
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...
10 KB (1,210 words) - 22:06, 4 July 2025
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...
8 KB (838 words) - 12:51, 8 June 2025
Fstab (category Unix file system technology)
(after file systems table) is a system file commonly found in the directory /etc on Unix and Unix-like computer systems. The /etc/fstab file is used...
12 KB (1,512 words) - 12:21, 10 April 2025
In computing, tty is a command in Unix and Unix-like operating systems to print the file name of the terminal connected to standard input. tty stands for...
2 KB (204 words) - 02:41, 22 July 2025
Filesystem in Userspace (redirect from File system in userspace)
software interface for Unix and Unix-like computer operating systems that lets non-privileged users create their own file systems without editing kernel...
15 KB (1,562 words) - 19:18, 13 May 2025
z/OS UNIX System Services (z/OS UNIX, or informally USS) is a base element of z/OS. z/OS UNIX is a certified UNIX operating system implementation (XPG4...
6 KB (553 words) - 14:22, 27 January 2025
is a shell command for reporting file system storage use – space used for a file or a directory tree. The Single UNIX Specification (SUS) specifies that...
6 KB (633 words) - 19:53, 13 April 2025
file with a shebang is used as if it were an executable in a Unix-like operating system, the program loader mechanism parses the rest of the file's initial...
25 KB (3,233 words) - 17:13, 17 July 2025
file is a shell command for reporting the type of data contained in a file. It is commonly supported in Unix and Unix-like operating systems. As the command...
12 KB (1,282 words) - 20:28, 5 May 2025
Unix (/ˈjuːnɪks/ , YOO-niks; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T...
59 KB (6,135 words) - 22:48, 14 July 2025