Mar 10, 2011 · When we open an existing file or create a new file, the kernel returns a file descriptor to the process. The kernel maintains a table of all open file descriptors, which are in …

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 other input/output resource, such as a pipe or …

Mar 13, 2021 · A file descriptor is a number that uniquely identifies an open file in a computer's operating system. It describes a data resource, and how that resource may be accessed.

Apr 20, 2023 · File descriptor is simply an index into the file descriptor table. For each process in our operating system, there is a process control block (PCB). PCB keeps track of the context of …

Jan 6, 2025 · File descriptors are a core concept in Linux and other Unix-like operating systems. They provide a way for programs to interact with files, devices, and other input/output (I/O) …

The value returned by an open call is termed a file descriptor and is essentially an index into an array of open files kept by the kernel. File descriptors are an index into a file descriptor table …

Jan 6, 2024 · In Linux, file descriptors are a mechanism used to represent open files, sockets, pipes, and other input and output streams. A file descriptor is a non-negative integer value that …

Home > Glossary > What is a file descriptor? What is a file descriptor? A file descriptor is a unique identifier or reference that the operating system assigns to a file when it is opened. It allows …

May 25, 2025 · File Descriptor is linux. What is a File Descriptor? | by pash4stud2 | May, 2025 | Medium. Each process in a Unix/Linux system has its own table of file descriptors. When a...

Jan 9, 2024 · A file descriptor is a positive integer that acts as a unique identifier (or handle) for “files” and other I/O resources, such as pipes, sockets, blocks, devices, or terminal I/O. All the …