1SYNC(P)                    POSIX Programmer's Manual                   SYNC(P)
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NAME

6       sync - schedule file system updates
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SYNOPSIS

9       #include <unistd.h>
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11       void sync(void);
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DESCRIPTION

15       The  sync() function shall cause all information in memory that updates
16       file systems to be scheduled for writing out to all file systems.
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18       The writing, although  scheduled,  is  not  necessarily  complete  upon
19       return from sync().
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RETURN VALUE

22       The sync() function shall not return a value.
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ERRORS

25       No errors are defined.
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27       The following sections are informative.
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EXAMPLES

30       None.
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APPLICATION USAGE

33       None.
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RATIONALE

36       None.
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FUTURE DIRECTIONS

39       None.
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SEE ALSO

42       fsync()   ,   the  Base  Definitions  volume  of  IEEE Std 1003.1-2001,
43       <unistd.h>
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46       Portions of this text are reprinted and reproduced in  electronic  form
47       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
48       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
49       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
50       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
51       event of any discrepancy between this version and the original IEEE and
52       The Open Group Standard, the original IEEE and The Open Group  Standard
53       is  the  referee document. The original Standard can be obtained online
54       at http://www.opengroup.org/unix/online.html .
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58IEEE/The Open Group                  2003                              SYNC(P)
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