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O que (quem) é filehandle - definição
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.](https://commons.wikimedia.org/wiki/Special:FilePath/File table and inode table.svg?width=200 "multiple names]]). File descriptor 3 does not refer to anything in the file table, signifying that it has been closed.")
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.
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)
Wikipédia
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:
