11-21-2009
unix doubts
How to close file in Unix. fclose(filename) whether it works in KORN SHELL or not?
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LEARN ABOUT FREEBSD
fclose
FCLOSE(3) BSD Library Functions Manual FCLOSE(3)
NAME
fclose, fcloseall -- close a stream
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdio.h>
int
fclose(FILE *stream);
void
fcloseall(void);
DESCRIPTION
The fclose() function dissociates the named stream from its underlying file or set of functions. If the stream was being used for output,
any buffered data is written first, using fflush(3).
The fcloseall() function calls fclose() on all open streams.
RETURN VALUES
Upon successful completion 0 is returned. Otherwise, EOF is returned and the global variable errno is set to indicate the error. In either
case no further access to the stream is possible.
ERRORS
The fclose() function may also fail and set errno for any of the errors specified for the routines close(2) or fflush(3).
NOTES
The fclose() function does not handle NULL arguments; they will result in a segmentation violation. This is intentional - it makes it easier
to make sure programs written under FreeBSD are bug free. This behaviour is an implementation detail, and programs should not rely upon it.
SEE ALSO
close(2), fflush(3), fopen(3), setbuf(3)
STANDARDS
The fclose() function conforms to ISO/IEC 9899:1990 (``ISO C90'').
The fcloseall() function first appeared in FreeBSD 7.0.
BSD
April 22, 2006 BSD