computer operating systems, a file descriptor (FD, less frequently fildes) is a process-unique identifier (handle) for a file or other input/output resource...

The first 16 sectors of the file system are empty and reserved for other uses. The rest begins with a volume descriptor set (a header block which describes...

The Binary File Descriptor library (BFD) is the GNU Project's main mechanism for the portable manipulation of object files in a variety of formats. As...

Media Descriptor File (MDF) is a proprietary disc image file format developed for Alcohol 120%, an optical disc authoring program. Daemon Tools, CDemu...

opening or creating files in the global filesystem name space. The lines between the common interpretations of "file" and "file descriptor" are often blurred...

an operating system can reference through a file descriptor. Once present, this correlation between the file and the memory space permits applications to...

errors affecting file descriptors. The kinds of errors that are detected are closing a file descriptor that is not open file descriptors that are not closed...

network communication path. The Berkeley sockets API represents it as a file descriptor in the Unix philosophy that provides a common interface for input and...

"duplicate") and dup2 system calls create a copy of a given file descriptor. This new descriptor actually does not behave like a copy, but like an alias of...

traditional implementations, file descriptors are indices into a (per-process) file descriptor table, thence a (system-wide) file table. While a pointer contains...

functions that establish the link between FILE objects and file descriptors, and a group of functions for creating FILE objects that refer to in-memory buffers...

of a file descriptor in the process's file descriptor table. This file descriptor is a capability. Its existence in the process's file descriptor table...

also known as a "descriptor" in information retrieval File descriptor, an abstract key for accessing a file Molecular descriptor, which helps characterize...

achieved using file I/O, with the target identified by a file descriptor. The select and poll system calls allow a set of file descriptors to be monitored...

The file descriptor for standard output is 1 (one); the POSIX <unistd.h> definition is STDOUT_FILENO; the corresponding C <stdio.h> variable is FILE* stdout;...

be carried over many different data transport protocols, including file descriptor I/O, HTTP and TCP. It does not directly provide any support for authentication...

given in number of bytes. write thus takes three arguments: The file code (file descriptor or fd). The pointer to a buffer where the data is stored (buf)...

The GNU Project's Binary File Descriptor library (BFD library) provides a common API for the manipulation of object files in a variety of formats. Many...

entries and per-process file descriptors. It provides file access, directory operations, security and protection. The virtual file system, an optional layer...

file descriptor is passed instead. The file descriptor must be opened with O_RDONLY or O_PATH and the caller must have permission to execute its file...

allows the sending processes to grant the receiving process access to a file descriptor for which the receiving process otherwise does not have access. This...

Chad (French: Front Démocratique du Tchad), a political party in Chad File descriptor table Flattened device tree Fluctuation-dissipation theorem Future-directed...

verification – see discussion] Its function is to monitor multiple file descriptors to see whether I/O is possible on any of them. It is meant to replace...

uses the select system call to sleep until a condition occurs on a file descriptor (e.g., when data is available for reading), a timeout occurs, or a...

and POSIX-compliant operating systems for examining the status of file descriptors of open input/output channels. The select system call is similar to...

the process's standard streams. /dev/fd/n – accesses the process's file descriptor n. Additionally, BSD-specific pseudo-devices with an ioctl interface...

resources associated to the file (the file descriptor), and returns a handle that the process will use to refer to that file. In some cases, the open is performed...

counter-intuitive. All fcntl locks associated with a file for a given process are removed when any file descriptor for that file is closed by that process, even if a...

test/[/[[ commands, for example, [ -r ./file -a ! -l ./file ] is deprecated in favor of [ -r ./file ] && ! [ -l ./file ]; Use of the arithmetic syntax $[....

an environment FCNTL FSTAT Stat a file using a file descriptor FSTATFS Stat a file system using a file descriptor IOCTL LINK First half of link() operation...