file descriptors - definizione. Che cos'è file descriptors
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Cosa (chi) è file descriptors - definizione

ABSTRACT INDICATOR (HANDLE) USED TO ACCESS A FILE OR OTHER INPUT/OUTPUT RESOURCE
File Descriptor; Filehandle; File handle; Unbuffered IO; File descriptors; File handles; Fcntl.h; Lseek; File descriptor table; File table; Fcntl
  • multiple names]]). File descriptor 3 does not refer to anything in the file table, signifying that it has been closed.

file descriptor         
<programming, operating system> An integer that identifies an open file within a process. This number is obtained as a result of opening a file. Operations which read, write, or close a file would take the file descriptor as an input parameter. In many operating system implementations, file descriptors are small integers which index a table of open files. In Unix, file descriptors 0, 1 and 2 correspond to the standard input, standard output and standard error files respectively. See file descriptor leak. (1998-02-06)
File descriptor         
In Unix and Unix-like computer operating systems, a file descriptor (FD, less frequently fildes) is a unique identifier (handle) for a file or other input/output resource, such as a pipe or network socket.
Binary File Descriptor library         
AN OBJECT FILE LIBRARY USED BY THE GNU DEBUGGER, ASSEMBLER, LINKER, AND THE BINARY UTILITIES
Libbfd; Binary File Descriptor; Binary file descriptor library
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. , it supports approximately 50 file formats for some 25 instruction set architectures.

Wikipedia

File descriptor

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 network socket.

File descriptors typically have non-negative integer values, with negative values being reserved to indicate "no value" or error conditions.

File descriptors are a part of the POSIX API. Each Unix process (except perhaps daemons) should have three standard POSIX file descriptors, corresponding to the three standard streams: