FILE DESCRIPTOR


Meaning of FILE DESCRIPTOR in English

< 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)

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