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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.


Read Also:

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  • Filemaker

    software A database application developed by Claris. It is currently the leading database application for the Macintosh and is the second most popular standalone package for Windows. (1998-02-18)

  • Filename

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  • Filename extension

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